TanknSpank

If it’s a public place and you have legitimate business starting there for a while, I don’t see any issue with it. Eg. Doctors waiting room and you have an appointment, restaurant and you’re dining there, etc.

If it’s someone’s private home I’d ask first.

If Threads wasn’t Threads and wasn’t part of the Meta ecosystem, and this could be guaranteed to me forever, sure I might use whatever that would be. But that’s so far from reality as to be a meaningless question.