When I try to connect to a F35 LXD VM using x2goclient, I get an error "Cannot Exec startkde". This can be fixed by either running "sudo ln -s /usr/bin/startplasma-x11 /usr/bin/startkde" in the VM or changing the command in x2goclient.
When a screen is displayed, it is completely black, with an arrow cursor.
I've seen a couple bug reports about black screen, but none seem to be relevant.
-- Michael Eager