As someone who started using Ubuntu around 9.x sometime, basically had breakages every time I ran dist-upgrade, gave Debian (both stable, unstable and testing) a chance, hit more snags and finally moved to Arch Linux and been using it since 2017 without a single Arch-induced issue, I do consider Arch Linux the single most stable distribution, probably mainly because of the rolling release schedule if nothing else.
It's good as a cutting edge OS but I don't consider it the most stable.