Both client and server are Fedora (31 and 32).

I'm running a kde/wayland client, with capslock mapped to ctrl.
When I connect to the server (running mate) everything works fine, except I don't have capslock mapped to ctrl.
Every time I connect (not every time the session starts) I have to run
setxkbmap -option caps:ctrl_modifier

Oh actually one thing doesn't work.  Cut/paste is totally nonfunctional.

--
Those who don't understand recursion are doomed to repeat it