A stab at my personal ranking: .deb > appimage > flatpack > curling a shell script
I can't help but love a .deb file (even when not via repo), I've almost exclusively used Debian and it derivatives since the late 90s. And snap isn't on the list because it got stored in a loopback device I removed.
my issue with snaps is honestly just that they are controlled too much by just one entity (canonical) and there is no reason for them to exist because flatpak already does everything they do.
If flatpak didn't make me put the entirety of KDE onto my system (thats an exaggeration but you know what I mean) I'd gladly crown it king of the package managers.
Tar is not a package manager, it is just a packaging format. AppImage has the same problem.
Flatpak is a bit of a crappy package manager but at least it is one. And, due to its use of container technology, it allows the same packages to run on any Linux kernel (any Linux distro). That is pretty useful.
Of the other package managers, apk 3 is my favourite but the only distro that uses it is Chimera Linux. Pacman is good. dnf / RPM is ok. apt / deb is in last place for me. The recent Ubuntu 25.04 launch snafu illustrates some of the problems with apt. The first Linus Tech Tips Linux challenge really highlighted the dangers of apt.
I only used snap briefly but instantly hated it. Fstab was a mess. It was slow. It was proprietary. I fled before I could form an educated opinion.
I really like flatpak and it's system, but AppImages are in a nice second place. I usually look for a flatpak first and appimages if I can't find the first.
Haha, I break snap a lot less than the others, and it took a bit to figure out the differences. Appimages are annoying af. Flatpaks are my favourite when there isn't a good old .deb. I recently broke Flatpak though so it's on my naughty list. Snap still chugging along for some reason, I just wish the permissions weren't so crazy strict (Nextcloud).
Speaking of all this, I realised I've accidentally installed some things twice. Is there a good way to list all the different package managers together to see what is duplicated?
Only tangentially related - but a friend brought over a new kubuntu install and Canonical had the cheek to demand money for VLC patches?
They don't fing own VLC. What the actual f is going on over there, Canonical?
EDIT: I had minimal exposure to Snap, sometimes Snap was my only option to get some software on Linux in a decent version and without getting into dependency hell while trying to compile it (why can't someone make a package manager for C/C++?). I do see the issue with proprietary servers though.