I mean pretty much any distro can achieve that even Arch based ones. For example with CachyOS you could essentially run it with say KDE and never need to open a terminal at all. Cachy includes Octopi as its GUI package manager and it works well. KDE can also potentially handle the updating for you.

you could also run say something like Bazzite or Nobara which is essentially the same. Nobara does have it’s own updater but i’ll be honest it’s kinda wonky sometimes and generally only starts off with access to its own repos.

Essentially at the end of the day the Distro doesn’t really matter in most cases. As long as it can utilize a GUI package manager or some sort of “app store” and allows easy installation of something like KDE then you’re good to go. The exceptions to this I would say would be like Gentoo or NixOS but as someone who uses NixOS…technically…it could potentially fit the bill. But that would require a bit of work to get it to that point.

Actually now that I think about it getting something like working on NixOS would be an interesting side hobby project to work on.