What is your definition of stability? I have used Arch for about ten years without any major breakage, but sometimes you do have to do some manual tinkering if a package stops working. So it's stable enough for me, but maybe not for others. Since it is a rolling release, packages are generally being updated quite rapidly.
I think that any modern rolling release distro would fit the bill though.
This here! I actually have had really good luck using Arch. I've been running it for only a month now and I make certain to patch/update once a week. Thus far it has not left me stranded. I think Arch is underrated as an OS.
I don't think Arch is anywhere near "underrated". The "I use Arch, btw" meme didn't come out of nowhere. A lot of distros are based on Arch too. Even SteamOS (so the Steam Deck is essentially powered by Arch).
In that regard: yes, Arch is awesome. I use it, btw.
You will only notice the downside of a rolling release distribution when using it for years. Large breaking changes might unexpectedly be applied to your system, instead of at fixed points in time like with other distributions.