I'm not sure how different the interface is on OneUI, but on my Pixel when I swipe up and hold on an app to open the App Switcher, there is a button below the app that takes a screenshot of just that app.
I don't remember when it was first introduced, but it is a feature of stock Android, so it should be present in some capacity on most Android phones.
I'm not sure how different the interface is on OneUI, but on my Pixel when I swipe up and hold on an app to open the App Switcher, there is a button below the app that takes a screenshot of just that app.
I don't remember when it was first introduced, but it is a feature of stock Android, so it should be present in some capacity on most Android phones.
You may have tried this already, but Microsoft does have a specific troubleshooter for Windows Hello via the Get Help app and at https://support.microsoft.com/en-us/windows/troubleshoot-problems-with-windows-hello-bf68539e-e95e-48b6-a6cb-455649db3887. Though if all else fails, you could also try uninstalling and then re-installing the "Facial Recognition (Windows Hello)" feature via Settings > Optional Features and see if that helps any or not.