However, no one one my design team likes it. I certainly don't. It's akin to having someone breathing over your shoulder as you're trying to work. And with design, especially, I tend to create a bunch of nonsense and "bad" designs before getting anywhere near a level worthy of sharing or even a team critique. Even if I don't care what others think of me or my skills, it's very disruptive to the creative process to know that someone is watching you.
In my experience, at least, there do not seem to be very many use cases for "multiplayer." I mean, even using Google Docs at the same time as someone else is jarring and disruptive in most cases.
Perhaps the only use case where we've actually liked having it is for a critique (especially when a teammate is remote) or a demo.
Personal preference aside, I think Figma is great. I still miss some things from Sketch, but overall Figma is a great tool. My team recently transitioned/is still transitioning from Sketch to Figma, and I can imagine that many other design teams will be making the same move too.