Fixing the login doesn't fix the rest of Teams' problems. Maybe you're the chosen one and everything works for you, but it's not a common experience.

Oh I have it installed on both Windows 10 and Windows 11. It doesn't work. It takes ages to load, it never updates people's status correctly, half the time it doesn't even log in. Why they didn't just patch Skype instead of making that pile of garbage is beyond me.