English
$ echo $WAYLAND_DISPLAY
wayland-0
$ loginctl show-session <YOUR_SESSION_NUMBER> -p Type
$ xlsclients
https://wayland.freedesktop.org/
If you need to determine if an issue you are experiencing is related to wayland, see the Fedora wiki at the link below:
https://fedoraproject.org/wiki/How_to_debug_Wayland_problems