I'm here on Arch btw for my main gaming and work rig (same desktop PC), and gaming works beautifully, running Niri. I love Niri for gaming, because of how fast I can switch side to side between discord, browser, the game, etc. No weird "alt-tabbing" business. The most gaming friendly compositor I've come across.

The only thing with Niri seems to be that when I'm running Steam Link, the opened game doesn't seem to get focus, which is a bit wonky. I have to go over from my TV to the PC and focus the game window. 😄 But otherwise great, if I'm by the PC itself. 👌