Quote Originally Posted by dwodmots View Post
Do the usual troubleshooting things, like uninstalling the game and deleting the folder it was installed to (because steam doesn't remove everything for some reason) then installing it again.

Also since you're on GNU/Linux, make sure to look through all the settings on any compatibility software you may be using, like that launcher (that I heard) is required to play on the Steam Deck.

That last step should not be required, I can confirm that no special launcher is required to play the Steam version on a Linux PC using Proton 9.0