Is there a multimedia guide for Leap 15.3?

I used the logic for the multimedia guide for 15.1, substituting 15.3 where appropriate but it seems no packman for Leap 15.3 or did I go wrong?

Please could somebody advise.

Budge

Well, packman is there:

https://en.opensuse.org/Additional_package_repositories
https://ftp.gwdg.de/pub/linux/misc/packman/suse/openSUSE_Leap_15.3/

But I don’t know much more - still on 15.2.

Besides the extensive guidance of the official documentation, here’s an unofficial one I use.

https://opensuse-guide.org/codecs.php

Also installing opi may do that:

zypper in opi
opi codecs

The short guide: https://forums.opensuse.org/showthread.php/540572-Installing-Packman-Codecs?p=2938992#post2938992