...to get a working config, you need to learn a whole new programming language and figure out the tweaks for each package you want to install, so I'd argue the journey is just as long
nix being 20 years old and still lacking decent documentation on the language it's what hurts me the most, because the people who do know it works so some amazing things with it
How often do you reinstall your OS? In practice never, I installed Arch around 8 years ago on one computer and that's the install I have today still. I copied it twice to a bigger SSD but that's kind of it.
I am a Gentoo user and most of that is already a reality on Gentoo systems. Get the stage3 tarball set up, slap your /etc/portage/make.conf and /var/lib/portage/world files in there and build.
Obviously, depending on whether it should be a blank system with the same apps installed or a clone of a previous system, configuration in /etc and one's home directory may need to be copied, too.
I think Endeavour OS is like that too. I have 2 "unfixable" bugs on my arch installation that can never be removed. I have to manually do 2 annoying workaround tasks every time I turn on my computer before I can use it and this will likely never go away. I've been told both these issues can't be fixed without a complete os reinstall and even then it might not go away. I booted into an Endeavour OS live usb and what do you know, both those bugs were fixed out of the box. Endeavour is based on Arch. The kernel it was running was a kernel number release after my installation developed both of these "forever" bugs.
Arch is great and all but holy fuck I'm sick and tired of this fucking bullshit all the time. One of these times I'm going to type sudo pacman -Syu and it will develop yet a third unfixable forever bug. This is the same shit that drove me away from Windows: uncontrollable degradation over time that can't be fixed without os reinstall. Even Gentoo isn't this unforgiving.