I've installed Fedora 28 from the LXDE spin.
I am running AnyDesk to enable remotely logging into this system, which only supports X11, and not Wayland. LXDE itself uses X11, so that's fine.
However, when the machine is restarted, the Fedora login screen comes up; presumably the login screen is using Wayland, and trying to connect remotely at that point via AnyDesk returns an error about the Wayland server not being supported.
The standard solution I've seen is to edit
/etc/gdm3/custom.conf. But neither of those exist on my system, presumably because I didn't install GNOME.