Welcome to the forum! 
It used to be, but not anymore now, because GNOME 49 has dropped support for X11 and is now Wayland-only. For that matter, KDE Plasma does still support X11 for now if the additional support packages are installed, but KDE too have announced that they will be dropping X11 support completely for Plasma 6.8.
I’m afraid Wayland is the only way to go anymore if you’re on either of those two desktop environments. Xfce does still run on X11 by default, even if only because Wayland support is still quite experimental there, due to the rather conservative nature of Xfce itself.