TL;DR
- Strings in the latest Android 15 beta suggest the OS can automatically delete biometrics that aren’t working well.
- Android will delete your face or fingerprint unlock when they aren’t working well and then prompt you to set them up again.
- We don’t know how the OS determines when a biometric isn’t working well or if this feature is even live yet in the latest Android 15 beta, though.
My experience differs. I found optical in display fingerprint to be quite reliable. It even happens to work with slightly wet hands. The room being too dark or bright has also never been an issue since my finger covers the sensor completely.
I guess it depends on the quality of sensor used by the manufacter. Pixel phones are known to have issues.
I purposely only registered the bare minimum of my fingerprint on my pixel 6. so long as I hold my digit correctly it unlocks every time, if I am off by a few millimetres (and I know when that is) it fails to unlock, I like it that way. Don’t auto delete my preferred setting, ty