I have been using Teams through college for the past 3 years, for a solid 80% of the duration of that, Teams has had no issues what so ever, however, as of late I have found myself attempting to sign into their web client, which is forcing me to use an email I simply do not want to use, furthermore, I have been recommended to sign into that unwanted account, and then sign out and sign into the desired one, alas, this is not something they can even do either. Teams as a service is absolutely trash, their software has always been poorly made, just look at Windows 11 and Skype. Hopefully another company comes in and nullifies this trash and Microsoft doesnt just straight up buy them like they do to everything else that is good. Stick to managing game companies thats literally all your good at.