$ rpm -qd lutris
/usr/share/man/lutris.1
[poc@Bree ~]$ man lutris
No manual entry for lutris
[poc@Bree ~]$ ls -l /usr/share/man/lutris.1
-rw-r--r--. 1 root root 1433 Jul 19 00:02 /usr/share/man/lutris.1
I ran into this yesterday. In my case i was doing 'man zram-genarator.conf' and also for a few bcc tools programs. No entry.
Two Fedora 33 systems affected, Workstation and Server. But not a third Workstation.
In the first case I reinstalled the zram-generator package. I noticed this kicked off a mandb process. Problem fixed. On the second machine I found a mandb rebuild service unit (I can't remember the exact name and I'm mobile at the moment) and just did 'sudo systemctl start mandbwhatever.service' and that also fixed it.
What I don't know is why it broke in the first place.
--
Chris Murphy