Getting Unwanted Login Requests on My MS Account – What’s Going On?

You might want to check if your account has any linked devices that you're not aware of. Sometimes apps or old devices can trigger requests. I noticed the same thing happening with mine and had to go through old device settings and disconnect some of them. As for reinstalling the Authenticator, you could back it up first if you have that option; otherwise, a cache clear could keep your accounts intact.

It sounds like you're in a frustrating situation! Since you're tech-savvy, I suggest checking your account security settings and enabling two-factor authentication if you haven't done so already. It adds an extra layer of security. Regarding the Authenticator app, it might help to clear the app cache first—try that before full reinstallation. If those login requests continue, consider reviewing any apps connected to your account that might be causing these calls, like your VPN. Sometimes, unusual behavior can stem from settings there.

I hear you on the confusion with the sign-in requests! Same thing happened to me with attempts that weren't reflected in my activity page. I had issues with my VPN, too—requests kept showing up from countries where I wasn't logged in. Maybe switching your VPN off for a bit might help clarify if that's the problem. Don't hesitate to reach out to Microsoft support, they've been helpful for me in the past.