Ask Google a massive upgrade Google Play Services allowing you to log on using your fingerprint instead of typing passwords in the web sites supported. This update is already available for all devices running Android 7 Nougat at least. Of course, you’ll phones Google Pixel on the soil faster than everyone.
Once you register your fingerprint in some Google services, it will be you are making an enquiry about whether you want to use the fingerprint reader to log in to those services from now on. This method shall apply to applications and websites.
Think the authentication method to these new standards FIDO2 and W3C WebAuthn and FIDO CTAP to get through a simple, secure logon using biometrics. In fact, thanks to the standard FIDO2, you can finally use the authentication method, these on the web and not only on the applications that support the API related to the sensor of the fingerprint of the original for the Android system.