Your login session at work lasts exactly 168 hours (24*7) and at 168 hours and one minute, you get two MFA prompts simultaneously. You can't click on Outlook yet because the MFA system "didn't hear from you". After logging on, you join your daily Teams standup anonymously, because you don't have time to dig through dialog boxes that ding at you when you click on them to find the one with the working login button. A password prompt appears for a moment, you start typing, then it disappears again.
That 168-hours-and-a-bit slowly cycles later and later into each passing week, and you fucking dread when it reaches late Friday afternoon, because it means Monday morning will be written off by logging in, rebooting, and patting multiple Microsoft applications on the head, and you're useless to your busy colleagues until you do.
This program with no icon or name is preventing you from restarting. You click Cancel. It restarts anyway.
Also, how likely are you to recommend Teams to a friend?