Fred, have you tried a XLibre install on a "x11 free" system ? eg "With Fedora 44, that fallback is completely removed for GNOME and KDE Plasma installations."
Now, such systems have, apparently, removed everything that talks x11 from Gnome and KDE (but xcb still works). So, installing xLibre would (??) make no difference. The DE would continue to talk to Wayland. Dose an app that speaks x11 go direct to display via xLibra, or still has to talk via the DE and therefore Wayland ?
While xLibre seems to still be getting lots of love from devs, not one recognized Disto ships with it being default. So, that says to me, the remaining non-wayland distros -
* XFCE - have announced they are working on wayland.
* Mate - seems to be struggling anyway
* Cinnamon - initial support for Wayland, which is still in the alpha ...
* Budgie - Budgie 10.10 switched to Wayland session by default for better ...
* Fluxbox ?
will all slowly drift to Wayland and thats where we need to concentrate our efforts. Like it or not (I don't). At the moment, with Qt5 and Qt6, xcb is the answer and a good one. But the X11 haters will kill that off as soon as they can. And gtk3 that Željan has done such a great job on, cannot use xcb.
A good example was systemd, it appeared, everyone said "no thanks, too invasive, you will never see it in my distro". But, one by one, (eg MXLinux) systemd became an option, then the default, then the only choice.
Not happy.
Davo