I have zoom in a snap package, half the time it doesn't work or the web interface doesn;t show slides from the presenter, if I can find the room ID I can copy that in to software zoom, then struggle to manually copy the password.
I have access to a Big Blue Button instance, this 'just works' whichis really handy as at times I can offer this as a solution to video conferencing, I can't use teams, zoom but how about this, send them a link (and a link to some information) and they are usually fine.
But yes, a tutor at a recent course had the same thing, turns off at 17:00 which is fine most of the time, not so good if there is work to catch up on. Sometimes having some flexibility is a good thing. But on the understanding that you are still not contactable after a certain time of day.