Additional features, settings, or issues not covered by specific Microsoft Teams categories
It's pretty annoying. When the dialogue shows up and I click on "I'm back" the whole webapp reloads, disconnecting me from meetings or whatever. And it renders the webapp unusable: Right after reload the same dialogue shows up over and over, stuck in a loop. To escape, I have to delete all microsoft-related cookies and wait a couple of time.
While this happens, I'm also connected via iphone/teams-app, which is not affected.
An evil workaround for this issue is to delete the modal dialogue using the devtools, e.g. right-click in the dialogue, select "inspect", scroll up to the div with the id "ngdialog1" and delete it. Needs only be done once.
unfortunately that didn't help for long. After a while an AppError-redirect kills the session entirely.