It is not possible to log out of TeamDrive. To sign in with a different user, please uninstall and reinstall TeamDrive or simply delete the TeamDrive data directory. Please use the following link for more information on how to find the TeamDrive data directory.
In general, when logging in with different Windows or Mac users, you can also use TeamDrive with another user.
A Windows user always corresponds to a TeamDrive user. Due to this procedure, all security requirements can be met.