Additional sign-in or account-related issues within Microsoft Teams Free
I cleared the MS Teams cache folders, as indicated. This changed nothing. After logging in again, I still see the wrong email address. I might add that when I log out from Teams, the message on screen says I am logging out from the wrong account—not the account I used to initially log in.
I tried connecting to Teams in a browser, first in Firefox and then in Chrome. In neither case can I complete the connection. However, there is one difference I noted. After I finally get to the screen in Teams with the message "Welcome to Teams" that allows you to select an organization from a drop-down list, in the Linux app, I have no choice. The only available organization is the one I created when I first signed up with Teams. In the browser version, however, I can choose between that same organization OR my personal account. I don't know if this difference is related to the issue I am trying to solve. I want to stay focused on that issue, please.