Comment 39 for bug 1951491

I'm just an ordinary user trying to get this working and volunteering what I learn, so bear that in mind. I have no real clue about what the problem is and I still don't understand where in the session start process DBUS_SESSION_BUS_ADDRESS is set and why we get a wrong value when starting sessions with our remote access.

I sent my workaround to nomachine since it has some advantages over their current solution of disabling cgroupv2. They said it works for them, and they have altered their tech note to say the node.cfg could also be:

DefaultDesktopCommand "env
DBUS_SESSION_BUS_ADDRESS=unix:path=$XDG_RUNTIME_DIR/bus /usr/bin/startxfce4"

I think you will recognise how to apply that.
This seems to allow only one session per user.

let me know if it works. I remember now I setup "loginctl enable-linger", which may or may not be helping my solution.