I'm sure I saw somewhere some while ago a way to remove old/obsolete packages from an system-upgraded install. Packages that wouldn't be removed because they're dependencies somewhere still.
For example, the xorg drivers can be removed from my F40 when upgraded to f41 install. As if I'd installed it from the to-be f41 everything iso.
I can't find it from the documentation; can someone point me in the right direction, please.
I can't quite remember but I think it was an official Fedora package that one 'installs' which contains a script to remove obsolete packages from the prior Fedora version.
UPDATE: found it. https://docs.fedoraproject.org/en-US/quick-docs/upgrading-fedora-offline/#sect-clean-up-retired-packages