If you want rolling release, but still a stable distro, just go with OpenSUSE Tumbleweed, it’s a rolling release with snapshots that you can go back to if something breaks. IIRC they also have a special app verification thingy that’s supposed to be more stable than Arch’s.
I tried installing it 2 times, fucked it up the first time because I didn’t read it well enough, then fucked it up when trying to encrypt an USB drive. I’ve found its installer really not user-friendly. Any tips on the installation?