Here's what I did. I've got a Samsung Galaxy S notebook/laptop with the Snapdragon mobile chipset instead of an Intel, wifi one. I upgraded to Windows 11 and shortly thereafter the fingerprint scanner went kaput (stopped working). I actually posted on here earlier in the year about my issue, but thank God it was resolved before any replies came in.
Try this if you haven't. First put Windows into troubleshooting mode, which may or may not spot the issue. Do a hard reboot (diff ways, but I just hold the power button on for like 10 seconds, and it'll cycle on, off, and on again). Go into Windows Hello settings and remove all fingerprints that you had saved. Do another hard rebooting, then go back to Windows Hello (fingerprint/security) and rescan your fingerprints. After this you may need to power off/power on PC, and then hopefully you'll be at the sign-in screen and can use your fingerprint.
I hope this helps. From my understanding Windows tries to reinstall/update drivers through Windows Updates AND when you do a hard (or maybe it's considered soft?) reboot. Have a little patience, as you may have to do this a couple times (rebooting, uninstalling / reinstalling fingerprints) because I did. It would let me get halfway through scanning my fingerprint and then just quit accepting input, not sure why, I'm not a technician, but this way worked for me. Theres also some great other fixes in this thread as well.
God bless my friend!