Why not? I use Steam under Wayland all the time. (Although it uses XWayland, but it is seamless for me). In fact I prefer it because a lot of games try to do st

Why not? I use Steam under Wayland all the time. (Although it uses XWayland, but it is seamless for me). In fact I prefer it because a lot of games try to do stupid things under X like change the resolution or always put themselves on my "first" monitor (and often mess up mouse inputs if they are moved). Under Wayland they behave much better. The only thing that I can imagine that you are talking about is lack of proprietary driver support but that doesn't really seem related to Steam.