I am not an technical expert, but I was wondering if anyone can verify my idea and/or who would give a who would support this:
In order to login with the fingerprint sensor on Android 13 it might be possible to reach out to the owner of Keepass2Android (an independent developer from Germany, Philipp Corcoll, https://philipp.crocoll.net/) to develop a workaround for Fairphone 3 users.
I would be willing to donate some money if necessary in order to make this work on Android 13.
I am aware that the fingerprint is not working because of security requirements, but maybe it is possible to lower the requirements (a tiny little bit) by Philipp so that it is possible to use it again.
Again, I am not a technical expert so feel free to stop me right away in case this is complete nonsense.