Plasma will finally have a RDP server that support wayland 
https://quantumproductions.info/articles/2023-08/remote-desktop-using-rdp-protocol-plasma-wayland
This can already be tested by downloading a flatpak build. For now you can start the server like that:
flatpak run org.kde.krdp -u {username} -p {password}
Cool stuff. Can’t wait to try it out.
Anyone get the KRDP server working? I’ve given it a try but run into some issues (as to be expected with alpha software):
run org.kde.krdp —port 3399 -u xxxxxx -p x
Could not find certificate and certificate key, generating temporary certificate
Temporary certificate generated; ready to accept connections.
org.kde.krdp: Initializing Freedesktop Portal Session
org.kde.krdp: Listening for connections on QHostAddress(QHostAddress ::Any) 3399
org.kde.krdp: Could not start screencast session, error code 2
org.kde.krdp: Closing Freedesktop Portal session
Problem lies somewhere after XDG.Desktop.Portal is initialized. Official thread =
[https://discuss.kde.org/t/remote-desktop-using-the-rdp-protocol-for-plasma-wayland/3616/23]
I’m a new user so only got 3 posts before they blocked me.
edit to add: BTW, using port 3399 since I was trying to eliminate any “crosstalk” while using VMConnect which defaults to 3389.
Nope, I tried it a while back, but I believe I ran into a different issue.