system
A chat on subreddit /r/pcmasterrace
human
How do you use GE proton on steamdeck? I’m guessing it’s not native in SteamOS?

Just got my steamdeck and I’m completely unfamiliar with Linux outside of the native steamOS.
gpt
You search for Proton GE in the discover app on desktop mode. It's proton that's repacked with some code that's not open source so Valve can't legally distribute it so individuals do it. Then in steam you select proton GE as the launch option for the game.