I wish there was a non rolling release distro that supported AUR, but it wouldn't really work. Some computers just need to work _every_time I turn them on though. Pop! does that (school laptop so no difficult stuff like games on it)
Endeavour with KDE is honestly godlike. It simply works. occasionally nvidia drivers break initramfs and there was the broken grub issue, but the only other distro I have around is Pop on a laptop I dont want to update frequently and I can only just tolerate it since I dont play games or record/edit on it, anything with no AUR would just be painful otherwise
It is possible to install Windows later too, you just have to go around fixing stuff then. I would recommended just getting another drive if possible though, ssds are cheap as fuck. Then just unplug all but the one you want to overwrite and install whatever. Idiot proof.
In fairness, when is the last time youve taken a shit in a post apocalyptic videogame? Although I still think its cool if things like this are considered.
I wish mint + AUR was a thing