A few years ago we were able to upgrade everything (OS and Apps) using a single command. I remember this was something we boasted about when talking to Windows and Mac fans. It was such an amazing feature. Something that users of proprietary systems hadn't even heard about. We had this on desktops before things like Apple's App Store and Play Store were a thing.
We can no longer do that thanks to Flatpaks and Snaps as well as AppImages.
Recently i upgraded my Fedora system. I few days later i found out i was runnig some older apps since they were Flatpaks (i had completely forgotten how I installed bitwarden for instance.)
Do you miss the old system too?
Is it possible to bring back that experience? A unified, reliable CLI solution to make sure EVERYTHING is up to date?
I think that this is above all else the reason that I use Arch. Arch Linux makes creating packages trivial, basically just wrapping build instructions into a shell script template. Arch handles the rest. The build systems for deb or rpm packages don't come close, and good luck rolling your own flatpak.
This allows me to use pacman for everything outside of my home directory. Pacman is practically the central feature of my computer, and it's wonderful. I'm sure those Nix people can relate, though I guess my method is a bit less robust.
ime they just break in different ways. pacman's easier to hack around but nix is more portable