Tried all sorts of things to get the latest SONOS Controller (Version 10.4) to work with Crossover 18.5.0. on Ubuntu 19.04. Everything failed - could get it to install but would not run beyond the splash screen. In frustration I tried to install it into my existing "Office 365" bottle which was created from the Crossover cross tie.
Amazingly IT WORKS. Access to all my Sonos speakers and can play and fully control my Spotify music - all the artwork also seems to work. The only issue I have found is the graphical rendering of the drop down menus but since these are not required to use the controller I am happy.
Just thought I'd share :) Of course I have no idea what bit of the bottle it likes, I am sure someone at codeweavers could do some investigation.....