It stopped working when I uninstalled Edge, and so did the face recognition. So it depends on WebView or some shit. Pretty sure it’s Microsoft's way of getting around the new EU regulations and hastily integrating the browser into everything, regardless of it making sense or improving security. like they did with 98 after the browser anti-competitiveness lawsuit.
It uses web view for web authentication for registering your Hello PIN to your Microsoft account. So it's by design on Microsoft's end. You can then use the Windows Hello credential as a passkey but if you don't want that, you'd need another solution for biometric auth.
It kinda does though, if you look at it from a speed/competency aspect. I'm more and more convinced that the people who build out features only have tangential ideas on how it integrates into the overall system, so just throwing a browser at every problem gets you a cookie cutter backend with APIs and let's you shove half baked features out the door without having to figure out how to wrap data in protocols since you just hand your payload so the browser and wait for a response.
Oh sweet summer child. No. That would have been the intelligent approach. It could have been fast and secure but it wouldn’t have had all that delicious telemetry nor taken another step towards charging you rent just to use your computer.
They locked it behind two online services. Welcome to the new Microsoft. If it doesn’t include charging you rent or using you & your private information to train a large ai model. They don’t care.