Basically, I have a 2014 computer with 4 GB of RAM, and I’m wondering whether to use Arch, EndeavourOS, or openSUSE. I really want to try Rice and use Hyprland, but that will be my second distro. The computer is a secondary one, so it’s no big deal if it breaks.


True, but not things you will use day to day. With such a little machine, I would go with EndeavourOS with i3 or sway and build it up from there.
I also recommend EndeavourOS. But maybe instead i3 or sway, Qtile is also a good alternative for everyone who knows and wants to do it in Python.