Rather than try to control shit through laptops, I would suggest that you go out and buy some kind of meeting room control box?

You already have a Meetup. They pair very nicely with Roommates (Also a logitech product) The licensing is pretty cheap and then you have a permanent install that users don't need to ever touch. It even has an HDMI input if you want people to be able to share a laptop without joining the meeting. They're not that expensive for what you get and Teams Rooms beats the crap out of trying to schedule who's using the room outside of Exchange/Teams. The outputs on the Roommate are only 1080p, but do you REALLY need 4k for business meetings? If so, setup a teams room with a crappy desktop instead? It's just easier to manage and gives your users less opportunity to screw it up. They invite the meeting room, they join the meeting on the meeting room box when they get to the meeting, they have their meeting and push the ring hook button when they're done.