There is a space which should be a dot. Original:
$ prosodyctl cert generate auth __jitsiFQDN__
Correct:
$ prosodyctl cert generate auth.__jitsiFQDN__
Same in /usr/share/doc/jitsi-meet/README-fedora.md
Fixed in 2.0.5390-2, for the discourse post I've asked a mod - it's no longer editable.
Metadata Update from @lcts: - Issue status updated to: Closed (was: Open)