Does anyone know how to remove @allthenticate@bird.makeup from #macOS?

Actually love the idea behind the #allthenticate app, but I have a sneaky suspicion it's the cause of the WindowServer failures that keep restarting my machine ... one click install, but no uninstall/eradicate script that I can track down (and no reply from their support folks).

Of course #Apple seem not to care about WindowServer crashes either, as there's nothing actionable in the dump and they keep happening