I just upgraded to the Pro version because I wanted the biometrics way to authenticate to Enpass. The thing I found is that when at the auth window, you need to pick biometrics as the auth method by clicking on the smiley to the right side of the window.
I have a PC with fingerprint sensor, so it might be different for users that have a camera for Windows Hallo, but having to click on the smiley and then put you finger on the sensor, seems like an extra step that should not be needed. I would like to submit a request for Enpass to either have a function where the default auth mechanism can be chosen (Password / biometrics) or have Enpass be able to auto-detect which auth mechanism the user to trying to use.