The first obvious answer may be the one you are comfortable with but that may be none for a new computer/ linux user.
The one where those package are available. Or even multiple ones.
With atomic (immutable) distros this question will arise more often as the question of which image becomes more important than which distro to chose.
I use dnf but I could also use apt or pacman. What are the relevant advantages of the package managers? What’s the reason to use apt over dnf? Nix? Simply package availability?
I use Fedora Atomic with Distrobox.
I asked the same question a while ago and decided to settle on Arch as container.
Why?
I still rarely use it. I’m leaning more to the casual user side and use Flatpak 99% of the time. But for terminal use, I find the said container, with zsh + plugins great. There are some programs (Nextcloud client for example) that don’t work 100% with Flatpaks, and for that, the Arch packages are actually pretty reliable and work almost every time (via distrobox-export).
I had a few doubts about Arch, and I personally still wouldn’t use it as distro for everyday use, but at least as container, it’s elegant and lovely. I could use Silverblue as unbreakable base and install everything with Arch, and nothing breaks.
Thx for sharing!