Glad to hear it and thanks for posting what worked for you. Not sure how many other players are using Linux but could help someone out later on! :)
Hopefully with the success of the Steam Deck Linux will get a few more. If any Linux users are having issues, the steps are:
1, Right click on the game title in library and select properties
2, In General, type
PROTON_LOG=1 %command% in launch options
3, In compatibility tick Force the use of a specific Steam Pay compatibility tool
It works for me with Proton Experimental.