Are they so different that it’s justified to have so many different distributions? So far I guess that different package manager are the reason that divides the linux community. One may be on KDE and one on GNOME but they can use each other’s packages but usually you are bound to one manager
I wouldn’t worry too much about the package manager, just worry about whether the distro has a good package repository.
download/updates fast and reliable. Also when watching git repositories for new software alternatives, you e.g. see often packages for good package managers, whereas you need to go some extra mile for “stable” package managers.
But I would say these are not features of the package manager software, rather they are features of the package repository, that is, the online service that provides the packages. It doesn’t matter if you use Apt, DNF, Pacman, if the package repo is slow, fully of packages that haven’t been built right, the package manager software won’t do much to make it better.
But like I said, a few package manager are really unique, like Gentoo Emerge, Crux Prt-Get, and Nix and Guix.
Can you decouple a package manager from its repository like that? And even if, is that a real world example?
Yes.
Ubuntu and debian both use apt, but differing repos. Different versions of ubuntu/debian use different repos, with newer/older software.
Ubuntu and Debian differences…don’t see your point here. Nobody in Arch uses apt? Nobody on ubuntu uses pacman. If you use pacman you are using Arch repositories.
