Additional features, settings, or issues not covered by specific Microsoft Teams categories
This is definitely a Teams mac bug. Affecting several users at my company and Microsoft tells us it's a "machine specific" issue. Their tech support teams apparently can't get through to the developers that presence on the mac app is broken.
I have found that the best way to "clear it out" is to restart Teams every morning. That's the only thing that works but I have to do it every single day.