A word of warning though, I played alternating between my beefy desktop and my steam deck, and the deck did admirable albeit at much lower settings. The only thing I simply could not play in handheld mode were street races. Frame rate and pop-in issues galore, it’s just too much for a little machine to process. Other than that the experience was great around 50fps.
Linux isn’t going to magically make your hardware better. Occasionally there are mild FPS gains or losses from one OS to the next but it’s not going to be a game changer in performance.
True, fuck Windows. Those two are at the more extreme end of performance gains. Most games I'm gaining 5 - 10fps. But I can now play all games (so far) at 1080p.