Hi all. Here is the latest. Again, I totally realize that many, if not most, of these packages are not needed. I just know that both result in a clean, working installation of Microsoft Office 365 on the latest versions of openSUSE. NOTE: Microsoft Office 365 seems to behave better on GNOME than on KDE Plasma, especially maximizing, minimizing and resizing. But it does still work on KDE. For both installations, I used the RPM package.
For openSUSE Leap 15.2:
sudo zypper install alsa-oss-32bit alsa-plugins-pulse-32bit atk-devel at-spi2-atk-devel at-spi2-core-devel bison bison-lang cairo-devel cups-devel cups-devel-32bit cups-rpm-helper dbus-1-devel dwz fontconfig-32bit fontconfig-devel fontconfig-devel-32bit freetype2-devel fribidi-devel gcc gcc9 gdk-pixbuf-devel gdk-pixbuf-query-loaders-32bit gettext-tools glib2-devel glib2-devel-32bit glib2-tools-32bit glibc-32bit glibc-devel glibc-devel-32bit gnome-keyring-32bit gnome-keyring-pam-32bit graphite2-devel gtk3-devel gtk3-devel-32bit gtk3-tools-32bit harfbuzz-devel krb5-32bit libacl1-32bit libasan5 libasound2-32bit libatk-1_0-0-32bit libatk-bridge-2_0-0-32bit libatomic1 libatspi0-32bit libattr1-32bit libattr-devel libattr-devel-32bit libaudit1-32bit libavahi-client3-32bit libavahi-common3-32bit libblkid1-32bit libblkid-devel libbrotlicommon1-32bit libbrotlidec1-32bit libbz2-1-32bit libbz2-devel libcairo2-32bit libcairo-gobject2-32bit libcairo-script-interpreter2 libcanberra0-32bit libcanberra-gtk3-0-32bit libcanberra-gtk3-module-32bit libcolord2-32bit libcom_err2-32bit libcom_err-devel libcom_err-devel-32bit libcrack2-32bit libcups2-32bit libdatrie1-32bit libdatrie-devel libdb-4_8-32bit libdbus-1-3-32bit libdcerpc0-32bit libdcerpc-binding0-32bit libdrm2-32bit libdrm-devel libepoxy0-32bit libepoxy-devel libexif12-32bit libexif-devel libexif-devel-32bit libexpat1-32bit libexpat-devel libfam0-gamin-32bit libffi-devel libFLAC8-32bit libfreetype6-32bit libfribidi0-32bit libgcc_s1-32bit libgcrypt20-32bit libgdk_pixbuf-2_0-0-32bit libgio-2_0-0-32bit libglib-2_0-0-32bit libglvnd-32bit libglvnd-devel libgmodule-2_0-0-32bit libgmp10-32bit libgnutls30-32bit libgobject-2_0-0-32bit libgpg-error0-32bit libgphoto2-devel libgphoto2-devel-32bit libgraphite2-3-32bit libgthread-2_0-0-32bit libgtk-3-0-32bit libharfbuzz0-32bit libharfbuzz-gobject0 libharfbuzz-subset0 libicu-devel libidn2-0-32bit libitm1 libjansson4-32bit libjbig2-32bit libjpeg8-32bit libjson-glib-1_0-0-32bit libkeyutils1-32bit liblcms2-2-32bit libldap-2_4-2-32bit libldb2-32bit liblsan0 libltdl7-32bit liblz4-1-32bit liblzma5-32bit libmount1-32bit libmount-devel libmpg123-0-32bit libncurses6-32bit libndr-krb5pac0-32bit libndr-nbt0-32bit libndr-standard0-32bit libnetapi0-32bit libnl3-200-32bit libnscd1-32bit libnsl2-32bit libogg0-32bit libopenal1-32bit libopenssl1_1-32bit libout123-0 libout123-0-32bit libp11-kit0-32bit libpango-1_0-0-32bit libpcap1-32bit libpcap-devel libpcap-devel-32bit libpcre1-32bit libpcre16-0 libpcrecpp0 libpcreposix0 libpixman-1-0-32bit libpixman-1-0-devel libpng12-0 libpng12-0-32bit libpng12-compat-devel libpng12-compat-devel-32bit libpng12-devel libpng12-devel-32bit libpng16-16-32bit libpopt0-32bit libpsl5-32bit libpulse0-32bit libressl-devel librest-0_7-0-32bit libsamba-credentials0-32bit libsamba-errors0-32bit libsamba-hostconfig0-32bit libsamba-passdb0-32bit libsamba-util0-32bit libsamdb0-32bit libsasl2-3-32bit libselinux1-32bit libselinux-devel libsensors4-devel libsepol-devel libsmbconf0-32bit libsmbldap2-32bit libsndfile1-32bit libsoup-2_4-1-32bit libspeex1-32bit libsqlite3-0-32bit libstdc++6-32bit libstdc++6-devel-gcc9 libstdc++-devel libsystemd0-32bit libtalloc2-32bit libtasn1-6-32bit libtdb1-32bit libtevent0-32bit libtevent-util0-32bit libthai0-32bit libthai-devel libtiff5-32bit libtiff-devel libtiff-devel-32bit libtirpc3-32bit libtsan0 libubsan1 libudev1-32bit libunistring2-32bit libusb-1_0-devel libuuid1-32bit libuuid-devel libv4l1-0-32bit libv4l2-0-32bit libv4l2rds0 libv4l-32bit libv4lconvert0-32bit libv4l-devel libv4l-devel-32bit libva2-32bit libva-devel libva-devel-32bit libva-drm2-32bit libva-gl-devel libva-wayland2 libva-x11-2-32bit libverto1-32bit libvorbis0-32bit libvorbisenc2-32bit libvorbisfile3-32bit libwayland-client0-32bit libwayland-cursor0-32bit libwayland-egl1-32bit libwbclient0-32bit libX11-6-32bit libX11-devel libX11-devel-32bit libX11-xcb1-32bit libXau6-32bit libXau-devel libxcb1-32bit libxcb-composite0 libxcb-damage0 libxcb-devel libxcb-dpms0 libxcb-record0 libxcb-render0-32bit libxcb-screensaver0 libxcb-shm0-32bit libxcb-xf86dri0 libxcb-xtest0 libxcb-xvmc0 libXcomposite1-32bit libXcomposite-devel libXcomposite-devel-32bit libXcursor1-32bit libXcursor-devel libXcursor-devel-32bit libXdamage1-32bit libXdamage-devel libXext6-32bit libXext-devel libXext-devel-32bit libXfixes3-32bit libXfixes-devel libXft2-32bit libXft-devel libXi6-32bit libXi-devel libXi-devel-32bit libXinerama1-32bit libXinerama-devel libXinerama-devel-32bit libxkbcommon0-32bit libxkbcommon-devel libxml2-2-32bit libxml2-devel libxml2-devel-32bit libXrandr2-32bit libXrandr-devel libXrandr-devel-32bit libXrender1-32bit libXrender-devel libXrender-devel-32bit libXtst-devel libXxf86vm1-32bit libXxf86vm-devel libXxf86vm-devel-32bit libz1-32bit libzstd-devel linux-glibc-devel m4 make make-lang Mesa-KHR-devel Mesa-libEGL-devel Mesa-libGL-devel mpg123-devel mpg123-devel-32bit ncurses-devel ncurses-devel-32bit net-snmp-devel nss-mdns-32bit openal-soft-devel openal-soft-devel-32bit pam-32bit pango-devel patch pcre-devel popt-devel pthread-stubs-devel pulseaudio-utils-32bit readline-devel readline-doc rpm-build rpm-devel samba-client-32bit samba-libs-32bit samba-winbind samba-winbind-32bit sane-backends-devel sane-backends-devel-32bit site-config systemd-32bit systemd-rpm-macros tack tcpd-devel typelib-1_0-GdkPixdata-2_0 typelib-1_0-HarfBuzz-0_0 unixODBC-32bit wayland-devel wayland-protocols-devel xz-devel zlib-devel zlib-devel-32bit gstreamer*32* libdrm* python3-gobject* gobject-introspection girl libdrm* typelib-1_0-Gtk-3_0 python-xml fontconfig-32bit libgphoto2-6-32bit libgsm1-32bit liblcms2-2-32bit libopenal1-32bit libOSMesa9-32bit sane-backends-32bit libXcomposite1-32bit libXinerama1-32bit libxslt1-32bit libXxf86vm1-32bit libgphoto2-6-32bit libudev1-32bit libxshmfence1-32bit libefl1 libglvnd-32bit liblcms2-2-32bit libnss_nis2-32bit libpciaccess0-32bit libxcb-dri3-0-32bit libxcb-glx0-32bit libxcb-present0-32bit libxcb-sync1-32bit libcups2-32bit wine gstreamer-plugins-bad gstreamer-plugins-base gstreamer-plugins-good gstreamer-plugins-ugly nss-mdns-32bit libgphoto2-6-32bit openal-soft-devel-32bit sane-backends-32bit libxslt1-32bit libnsl2-32bit libnsl2 gstreamer-32bit libgtk-3-0 gcc9-info gcc9-locale libstdc++6-gcc7-locale cpp7 gcc7 gcc7-info gcc7-locale gconf2 gconf2-lang gconf-polkit gnome-vfs2 gnome-vfs2-lang ibus-gtk3-32bit libargon2-1-32bit libart_lgpl_2-2 libasan4 libavcodec57-32bit libavfilter6-32bit libavformat57-32bit libavresample3-32bit libavutil55-32bit libcilkrts5 libcryptsetup12-32bit libdevmapper1_03-32bit libgnomecanvas-2-0 libgnomecanvas-lang libibus-1_0-5-32bit libICE6-32bit libIDL-2-0 libLLVM7-32bit libmagic1-32bit libmpcdec5-32bit libopenjpeg1-32bit libpostproc54-32bit libschroedinger-1_0-0-32bit libseccomp2-32bit libSM6-32bit libsrtp1-32bit libswresample2-32bit libswscale4-32bit libubsan0 vulkan-tools gconf2-lang gnome-vfs2-lang libgnomecanvas-lang alsa-oss-32bit alsa-plugins-pulse-32bit bison-lang clutter-gtk-lang clutter-lang cogl-lang dosbox gconf2-lang gnome-keyring-lang gnome-keyring-pam gnome-vfs2-lang libgnomecanvas-lang libpng12-compat-devel libpulse0-32bit libva-gl-devel make-lang Mesa-libGL1-32bit pcre-doc pulseaudio-utils-32bit readline-doc rpm-build wine-gecko wine-mono winetricks ld-linux.so.2 libc.so.6 libdl.so.2 libm.so.6 libgcc_s.so.1 libICE.so.6 libSM.so.6 libX11.so.6 libXext.so.6 libXi.so.6 libfreetype.so.6 libz.so.1 libcups.so.2 libGL.so.1 libXrandr.so.2 libXcursor.so.1 libnsl.so.1 libmpcdec5 libsrtp1 libstdc++6-devel-gcc7 libcapi20-3 Mesa-lib*
For openSUSE Tumbleweed:
sudo zypper install alsa-oss-32bit alsa-plugins-pulse-32bit atk-devel at-spi2-atk-devel at-spi2-core-devel bison bison-lang cairo-devel cups-devel cups-devel-32bit cups-rpm-helper dbus-1-devel dwz fontconfig-32bit fontconfig-devel fontconfig-devel-32bit freetype2-devel fribidi-devel gcc gcc9 gdk-pixbuf-devel gdk-pixbuf-query-loaders-32bit gettext-its-gtk4 gettext-tools glib2-devel glib2-devel-32bit glib2-tools-32bit glibc-32bit glibc-devel glibc-devel-32bit gnome-keyring-32bit gnome-keyring-pam-32bit graphite2-devel gtk3-devel gtk3-devel-32bit gtk3-tools-32bit harfbuzz-devel krb5-32bit libacl1-32bit libasan5 libasound2-32bit libatk-1_0-0-32bit libatk-bridge-2_0-0-32bit libatomic1 libatspi0-32bit libattr1-32bit libattr-devel libattr-devel-32bit libaudit1-32bit libavahi-client3-32bit libavahi-common3-32bit libblkid1-32bit libblkid-devel libbrotlicommon1-32bit libbrotlidec1-32bit libbz2-1-32bit libbz2-devel libcairo2-32bit libcairo-gobject2-32bit libcairo-script-interpreter2 libcanberra0-32bit libcanberra-gtk3-0-32bit libcanberra-gtk3-module-32bit libcolord2-32bit libcom_err2-32bit libcom_err-devel libcom_err-devel-32bit libcrack2-32bit libcrypt1-32bit libcups2-32bit libdatrie1-32bit libdatrie-devel libdb-4_8-32bit libdbus-1-3-32bit libdcerpc0-32bit libdcerpc-binding0-32bit libdrm2-32bit libdrm-devel libeconf0-32bit libepoxy0-32bit libepoxy-devel libexif12-32bit libexif-devel libexif-devel-32bit libexpat1-32bit libexpat-devel libfam0-gamin-32bit libffi-devel libFLAC8-32bit libfontconfig1-32bit libfreetype6-32bit libfribidi0-32bit libgcc_s1-32bit libgcrypt20-32bit libgdk_pixbuf-2_0-0-32bit libgio-2_0-0-32bit libglib-2_0-0-32bit libglvnd-32bit libglvnd-devel libgmodule-2_0-0-32bit libgmp10-32bit libgnutls30-32bit libgobject-2_0-0-32bit libgpg-error0-32bit libgphoto2-devel libgphoto2-devel-32bit libgraphite2-3-32bit libgthread-2_0-0-32bit libgtk-3-0-32bit libharfbuzz0-32bit libharfbuzz-gobject0 libharfbuzz-subset0 libicu-devel libidn2-0-32bit libitm1 libjansson4-32bit libjbig2-32bit libjpeg8-32bit libjson-glib-1_0-0-32bit libkeyutils1-32bit liblcms2-2-32bit libldap-2_4-2-32bit libldb2-32bit liblsan0 libltdl7-32bit liblz4-1-32bit liblzma5-32bit libmount1-32bit libmount-devel libmpg123-0-32bit libncurses6-32bit libndr-krb5pac0-32bit libndr-nbt0-32bit libndr-standard0-32bit libnetapi0-32bit libnl3-200-32bit libnscd1-32bit libnsl2-32bit libogg0-32bit libopenal1-32bit libopenssl1_1-32bit libout123-0 libout123-0-32bit libp11-kit0-32bit libpango-1_0-0-32bit libpcap1-32bit libpcap-devel libpcap-devel-32bit libpcre1-32bit libpcre16-0 libpcrecpp0 libpcreposix0 libpixman-1-0-32bit libpixman-1-0-devel libpng12-0 libpng12-0-32bit libpng12-compat-devel libpng12-compat-devel-32bit libpng12-devel libpng12-devel-32bit libpng16-16-32bit libpopt0-32bit libpsl5-32bit libpulse0-32bit libressl-devel librest-0_7-0-32bit libsamba-credentials0-32bit libsamba-errors0-32bit libsamba-hostconfig0-32bit libsamba-passdb0-32bit libsamba-util0-32bit libsamdb0-32bit libsasl2-3-32bit libselinux1-32bit libselinux-devel libsensors4-devel libsepol-devel libsmbconf0-32bit libsmbldap2-32bit libsndfile1-32bit libsoup-2_4-1-32bit libspeex1-32bit libsqlite3-0-32bit libstdc++6-32bit libstdc++6-devel-gcc9 libstdc++-devel libsystemd0-32bit libtalloc2-32bit libtasn1-6-32bit libtdb1-32bit libtevent0-32bit libtevent-util0-32bit libthai0-32bit libthai-devel libtiff5-32bit libtiff-devel libtiff-devel-32bit libtirpc3-32bit libtsan0 libubsan1 libudev1-32bit libunistring2-32bit libusb-1_0-devel libuuid1-32bit libuuid-devel libv4l1-0-32bit libv4l2-0-32bit libv4l2rds0 libv4l-32bit libv4lconvert0-32bit libv4l-devel libv4l-devel-32bit libva2-32bit libva-devel libva-devel-32bit libva-drm2-32bit libva-gl-devel libva-wayland2 libva-x11-2-32bit libverto1-32bit libvorbis0-32bit libvorbisenc2-32bit libvorbisfile3-32bit libwayland-client0-32bit libwayland-cursor0-32bit libwayland-egl1-32bit libwbclient0-32bit libX11-6-32bit libX11-devel libX11-devel-32bit libX11-xcb1-32bit libXau6-32bit libXau-devel libxcb1-32bit libxcb-composite0 libxcb-damage0 libxcb-devel libxcb-dpms0 libxcb-record0 libxcb-render0-32bit libxcb-screensaver0 libxcb-shm0-32bit libxcb-xf86dri0 libxcb-xtest0 libxcb-xvmc0 libXcomposite1-32bit libXcomposite-devel libXcomposite-devel-32bit libxcrypt-devel libXcursor1-32bit libXcursor-devel libXcursor-devel-32bit libXdamage1-32bit libXdamage-devel libXext6-32bit libXext-devel libXext-devel-32bit libXfixes3-32bit libXfixes-devel libXft2-32bit libXft-devel libXi6-32bit libXi-devel libXi-devel-32bit libXinerama1-32bit libXinerama-devel libXinerama-devel-32bit libxkbcommon0-32bit libxkbcommon-devel libxml2-2-32bit libxml2-devel libxml2-devel-32bit libXrandr2-32bit libXrandr-devel libXrandr-devel-32bit libXrender1-32bit libXrender-devel libXrender-devel-32bit libXtst-devel libXxf86vm1-32bit libXxf86vm-devel libXxf86vm-devel-32bit libz1-32bit libzstd-devel linux-glibc-devel m4 make make-lang Mesa-KHR-devel Mesa-libEGL-devel Mesa-libGL-devel mpg123-devel mpg123-devel-32bit ncurses-devel ncurses-devel-32bit net-snmp-devel nss-mdns-32bit openal-soft-devel openal-soft-devel-32bit pam-32bit pango-devel patch pcre-devel popt-devel pthread-stubs-devel pulseaudio-utils-32bit readline-devel readline-doc rpm-build rpm-devel samba-client-32bit samba-libs-32bit samba-winbind samba-winbind-32bit sane-backends-devel sane-backends-devel-32bit site-config systemd-32bit systemd-rpm-macros tack tcpd-devel typelib-1_0-GdkPixdata-2_0 typelib-1_0-HarfBuzz-0_0 unixODBC-32bit wayland-devel wayland-protocols-devel xorgproto-devel xz-devel zlib-devel zlib-devel-32bit gstreamer*32* libdrm* python3-gobject* gobject-introspection girl libdrm* typelib-1_0-Gtk-3_0 python-xml fontconfig-32bit libgphoto2-6-32bit libgsm1-32bit liblcms2-2-32bit libopenal1-32bit libOSMesa9-32bit sane-backends-32bit libXcomposite1-32bit libXinerama1-32bit libxslt1-32bit libXxf86vm1-32bit libgphoto2-6-32bit libudev1-32bit libxshmfence1-32bit libefl1 libglvnd-32bit liblcms2-2-32bit libnss_nis2-32bit libpciaccess0-32bit libxcb-dri3-0-32bit libxcb-glx0-32bit libxcb-present0-32bit libxcb-sync1-32bit libcups2-32bit wine gstreamer-plugins-bad gstreamer-plugins-base gstreamer-plugins-good gstreamer-plugins-ugly nss-mdns-32bit libgphoto2-6-32bit openal-soft-devel-32bit sane-backends-32bit libxslt1-32bit libnsl2-32bit libnsl2 gstreamer-32bit libgtk-3-0 gcc9-info gcc9-locale libstdc++6-gcc7-locale cpp7 gcc7 gcc7-info gcc7-locale gconf2 gconf2-lang gconf-polkit gnome-vfs2 gnome-vfs2-lang ibus-gtk3-32bit libargon2-1-32bit libart_lgpl_2-2 libasan4 libavcodec57-32bit libavfilter6-32bit libavformat57-32bit libavresample3-32bit libavutil55-32bit libcilkrts5 libcryptsetup12-32bit libdevmapper1_03-32bit libgnomecanvas-2-0 libgnomecanvas-lang libibus-1_0-5-32bit libICE6-32bit libIDL-2-0 libLLVM7-32bit libmagic1-32bit libmpcdec5-32bit libmpx2-gcc7 libmpxwrappers2-gcc7 libopenjpeg1-32bit libpostproc54-32bit libschroedinger-1_0-0-32bit libseccomp2-32bit libSM6-32bit libsrtp1-32bit libswresample2-32bit libswscale4-32bit libubsan0 vulkan-tools gconf2-lang gnome-vfs2-lang libgnomecanvas-lang alsa-oss-32bit alsa-plugins-pulse-32bit bison-lang clutter-gtk-lang clutter-lang cogl-lang dosbox gconf2-lang gnome-internet-radio-locator-lang gnome-keyring-lang gnome-keyring-pam gnome-vfs2-lang libgnomecanvas-lang libpng12-compat-devel libpulse0-32bit libva-gl-devel make-lang Mesa-libGL1-32bit pcre-doc pulseaudio-utils-32bit readline-doc rpm-build wine-gecko wine-mono winetricks ld-linux.so.2 libc.so.6 libdl.so.2 libm.so.6 libgcc_s.so.1 libICE.so.6 libSM.so.6 libX11.so.6 libXext.so.6 libXi.so.6 libfreetype.so.6 libz.so.1 libcups.so.2 libGL.so.1 libXrandr.so.2 libXcursor.so.1 libnsl.so.1 libmpcdec5 libsrtp1 libstdc++6-devel-gcc7 libcrypto46-32bit libcapi20-3