I used to freelance for a big corp who used MS teams and provided me with separate credentials, while also having my private MS account, that I occasionally use for other corps I worked for.
It was a hell using it that way. I had to run each one in a private Brave window to be able to work on two different accounts.
I know they only use MS teams, bc their infra is all based on MS, and it probably works fine for them internally. But man, this shit needs to be fixed in some way to account for external people, especially the ones who chose their own stack and work simultaneously with others.
It does, but it basically reloads the app when switching. Which, if I recall correctly, means no notifications from the other account and really slow swapping between accounts. When I had to use multiple accounts I would use the app for one and a browser for the other.
Luckily, I’ve been able to get away with only using Teams for meetings, so my exposure is limited, but last time I messed around in the top right corner there was an area that indicated it would show notifications from other accounts.
I have had no need or desire to test this, though.