Thank you! For normal Fedora 34, I just opened an issue ticket to ask to upgrade libfprint to 1.92.0 or newer, though I am not sure if it is possible because the Fedora 34 is stable version. I agree that distros tend to keep a major and minor version of a package to avoid a breaking change on a distro’s stable version, just upgrading a maintainer version or a release version of the package applying a patch. And it’s not the case on a development version like current Fedora 35.
If someone wants to see Ubuntu to support the fingerprint feature for Framework laptop on a future released version, you need to ask a Debian libfprint package maintainer to upgrade to the latest libfprint version. Because Debian is the upstream distro of Ubuntu. Maybe you can find a way to open the ticket somewhere in the Debian libfprint package tracker page. And same for other distros too!