Yes, the Windows store is crap, but it is still miles ahead of running random .exe installers.
And the Ubuntu store is like the worst possible example you could find 😱
Just any normal distribution repository from for example Debian or Fedora works great. And Gnome and KDE have very easy to use GUI interfaces for these and ideally Flathub is also integrated. Super easy and seamless, no joke at all.
I tend to use Hugo these days, which can be a bit janky as well, but there are nice themes for it.
If you want something really easy and Permacomputing compatible this looks pretty neat though: https://lichen.commoninternet.net/