I don’t use any banking Apps, or even the fingerprint sensor to start with.
You could open a new topic for this question to increase visibility (and to make it easier to point to), I guess you are not the only one interested.
For reference: Confirmation that /e/OS T for FP3 would inherit the LineageOS non-compliance with the fingerprint sensor change was here … Week 49 2023: Development and Testing Updates - #13 by Manoj.