I had the following message during and update
today

        Running scriptlet: flatpak-1.6.3-1.fc33.x86_64                               84/124
        Cleanup             : flatpak-1.6.3-1.fc33.x86_64                               84/124
        Running scriptlet: flatpak-1.6.3-1.fc33.x86_64                               84/124
        Warning: The unit file, source configuration file or drop-ins of flatpak-add-fedora-repos.service
        changed on disk.  Run 'systemctl daemon-reload' to reload units.

I have seen this message appear before on various packages and have always
ignored it.

Should I do anything, or just wait for it to self-heal ?

David Locklear
https://en.wikipedia.org/wiki/Egypt,_Montgomery_County,_Texas