Because wlroots and most Wayland implementations strictly use the kernel abstractions for buffer management, nothing else. They run on literally anything that

Because wlroots and most Wayland implementations strictly use the kernel abstractions for buffer management, nothing else. They run on literally anything that supports linux’s abstractions, but nvidia drivers did not (it changed recently, not sure about its current state). Also, xserver used to work with nvidia cards due to goddamn proprietary binary patching done by drivers.