Might be a good move

> … and shut down / restart the system, and configure some assistive tools, and attach a Bluetooth keyboard, and read a 2nd factor USB key, and whatnot.

Oh, dear. They really managed to overcomplicate things, now didn't they?

> Most of this requires a working dbus server that's attached to a specific seat. The session dbus connection's socket is in, surprise, /run/user/UID/bus, unless you set an envvar (which has its own set of potential issues).

DBUS to solve a problem that xdm has been solving without DBUS since 1988. Hilarious. And, because they managed to f* up what should be a simple GUI version of getty so badly, now they want to f* up UID management too to try to paper over that. ROFL. There truly is no sanity left among the cascade of attention deficit teenagers.

Ah, well. I'm over here with my Slackware, which will never incorporate any of this ongoing offense against good taste, so not my problem. And they do have version control, so they can always just revert all that nonsense when they grow up.