Proton 9.0 now in Beta with improved game compatibility for Steam Deck / Linux
Valve announced that Proton 9.0 is now available for testing, with lots of game compatibility improvements for Steam Deck and Desktop Linux thanks to it now being based on the recent Wine 9.0 release.
Anticheat check - which competitive games actually work on Linux?
How to give Valve feedback when Proton games have issues on Linux / SteamOS






