The most recent version of POP OS didn't have the fingerprint scanner enabled to log in or authenticate the terminal on my laptop (A Lenovo T15 1st gen).
To enable the fingerprint scanner, I had to follow the next steps in the terminal:
Update the apt:
sudo apt-cache update
Install fprintd and the pam lib for fprintd:
sudo apt-get install fprintd libpam-fprintd
Enroll the finger using fprintd:
Update PAM to use the fingerprint scanner and check Finger Print Authentication :