I've noticed that my gdm system is running /usr/bin/Xwayland instead of /usr/bin/Xorg, so I infer that Gentoo devs, or upstream, are preferring it now.
Can i try Xwayland with startx? pstree shows the execution paths as below. Inscrutable to me and interesting that they're so different. gdm: systemd -> gnome-shell -> Xwayland startx: startx -> xinit -> X (AND in parallel) gnome-session -> gnome-shell
