Gentoo on a frame.work 16 laptop

Wayland is not X, just as Linux was not Minix. X11 continues to exist and, given -modesetting supports using most of the same APIs that Wayland relies upon, is going to continue existing. If you want to remain on X, you can do. App developers may gradually choose not to continue supporting X, but that sounds like an issue you'd have with the app developers rather than the Wayland ones.