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Wayland, because it's faster, more stable, handles multi-monitor better, you can have animations while playing a game, no tearing, no fcking around window managers/compositors or shit, lower memory usage and 1:1 touchpad gestures
you have the same with X11... i have all these feats with my intel and AMD GPU.
So why Wayland then? Better architecture/codebase and more manpower. And I think it supports multi-gpu better, not sure as nvidia doesn't play well with Wayland, it would be astonish that Optimus works any better.
Try running multiple monitors with different resolutions or gaming... Just in general (no seriously, people who think that gaming on X11 is better than wayland are fcking insane... No tearing, having to disable compositor to get more than 20fps, just works) in X, bet you'll have a great time. And yes, Nvidia is the only reason why imo anyone should still be using X (if they don't wanna use gnome)