A set of merge requests were opened that would effectively drop X.Org (X11) session support for the GNOME desktop and once that code is removed making it a Wayland-only desktop environment.
Going along with Fedora 40 looking to disable the GNOME X11 session support (and also making KDE Plasma 6 Wayland-only for Fedora), upstream GNOME is evaluating the prospect of disabling and then removing their X11 session support.
Some concerns were raised already how this could impact downstream desktops like Budgie and Pantheon that haven’t yet fully transitioned over to Wayland. In any event we’ll see where the discussions lead but it’s sure looking like 2024 will be the year that GNOME goes Wayland-only.
Seems to me that “nothing I try works with Wayland” is not a good point where you want to cut off support for X11. That only means the software doesn’t work with either. Software doesn’t magically gain support for something else just because you cut off the old stuff.
That’s why I said this will help developers consider making their app work under Wayland, not magically gain support.