For what it's worth, Rocket League plays just fine on Linux if you use Proton, but your point on the others still stands. I've had to stop playing a few games

For what it's worth, Rocket League plays just fine on Linux if you use Proton, but your point on the others still stands. I've had to stop playing a few games once I made the switch-over (Destiny, GTA V), but am otherwise very happy with where SteamOS/ Proton is.