Due to regulatory restrictions (second factor must be bound to a certified hardware), I think all German banks use integrity checks for devices (SafetyNet/Play Integrity). Those will usually fail on rooted devices (unless you get lucky with magisk) or won’t work at all in the first place.
IMHO, german banking apps are really the end boss.
How do I know if my bank allows that before I switch? Also, how many other apps might not work on the new system?
You could ask them.
Due to regulatory restrictions (second factor must be bound to a certified hardware), I think all German banks use integrity checks for devices (SafetyNet/Play Integrity). Those will usually fail on rooted devices (unless you get lucky with magisk) or won’t work at all in the first place.
IMHO, german banking apps are really the end boss.