I don't want to use fingerprint screen unlock because then the police can just force your finger onto the reader to unlock your phone if they stop you, whereas with a PIN you can just refuse to say anything to them.
However, it's very useful to use the fingerprint to unlock certain programs, like Aegis, rather than having to type a password in, which is annoying as Aegis locks every time you switch to another app, as you do when entering OTP.
As far as I can tell, there's no way to disable the fingerprint screen unlock without it deleting the fingerprint, thus making it unavailable for apps like Aegis to use. Has anyone discovered a hack to let you switch from fingerprint to PIN screen unlock without deleting the fingerprint? I'm using a Poco X3 NFC with Android 11 / MIUI 12.5.2 if that makes any difference.