Although Wayland has been GNOME’s default session since 2016, X11 has continued to linger in the codebase—until now. That changed with the recent merging of two PRs (here and here), which completely removed the X11 codebase from both Mutter, GNOME’s default window manager and compositor, as well as the GNOME Shell itself.
In other words, the GNOME project is finally closing one of the longest chapters in Linux desktop history. With the upcoming GNOME 50 release, scheduled for mid-march 2026, the desktop environment will officially drop support for the native X11 session, making Wayland the sole display system moving forward.
I see. Those indeed are not possible on Wayland, at least not the way that was on Xorg. KDE has a built-in tool like xprop but I don’t know if it can be used on its own other than running it via KDE settings (There is
Detect window propertiesoption under Window rules.)From my own experience, using global keys was quite a hassle. I have found some workarounds to some but it’s still an open issue for me. Wayland has changed how a lot things work and I believe there will be solutions or at least workarounds to all Xorg tools in time, maybe with something like Flatseal but for Wayland but main issue which is security remains, so I don’t know how things will go.