I've really been pleasantly surprised by how well Proton works, and how well the Deck performs considering it's a mobile device. It's actually my primary gaming device now, and I often play with it hooked up to my monitor. Sure, I won't get 4k @ 60fps, but considering my previous gaming setup was a potato model PS4, the Deck has been a step up and it runs way more games than a Playstation. Definitely good enough for my tastes