My phone also fell out of my poket and the screen was slightly cracked, fingerprint scanner didn’t work anymore but mostly, the area of the sensor got very hot.
While the phone was still very much usable, except for the fingerprints, the battery life was very short due to the constant heating. It would not even last a day on a full charge while not being used much.
I brought the phone to a repair center where they swapped the whole display assembly. (glass, LCD, fingerprint sensor) Now it works perfectly fine again and the battery life is also good (~2days).
I hope this helps