They have not done that, though. With Proton, almost every Windows game on Steam "Just Works" (and many others do with a small amount of configuration.) As far

They have not done that, though. With Proton, almost every Windows game on Steam "Just Works" (and many others do with a small amount of configuration.) As far as I can tell, there is no way for a player to use GPT to run games from their Steam library on Mac.