Played the game for almost 1 hour total for testing. 30min on Proton-Experimental, game launched immediatly without issue, but i experienced some micro stuttering (most likely due processing shaders while playing). After switching to GE-Proton9-20 using protonqt-up, game will precompile shaders on launch (takes about 30-45 seconds), but after it does, game runs flawlessly with 0 stutter and 120+ fps on high settings (around 60 while in town with other players).