Note: The game does have a native Linux version, but Proton compatibility of the Windows version is of interest because the native Linux version may not work out of the box, particularly with Mesa drivers (although, in this case, simply putting radeonsi_sync_compile=true %command% in the launch options should get it working).

With Steam configured to run the Windows version of the game with Proton, the game works without any launch options or other tweaks.