A quick note, libfprint v1.92.0 or greater is needed to support the fingerprint reader.
Seeing Ubuntu, Debian and Fedora libfprint packages, the versions are like this at the moment.
Ubuntu
Ubuntu – Error (Ubuntu 21.10) - v1.90.7
Ubuntu – Error (Ubuntu 21.04) - v1.90.7
Debian
https://tracker.debian.org/pkg/libfprint
Debian -- Error - v1.90.7
Fedora
https://src.fedoraproject.org/rpms/libfprint
- Fedora 35: v1.92.0
- Fedora 34: v1.90.0
So, my guess is the “Fedora 34 Respins” written in Fedora 34 guide has the libfprint package >= v1.92.0 unlike normal Fedora 34.