If your last try with Debian was about 10 years ago, maybe give it another try? I find Debian stable exactly that: rock stable. Support for older HW is also great, offering enough Desktop choice.
Not OP, but for a desktop, the AUR makes every single other Linux distro objectively hard to use. Also dpkg is slow and breaks more than I would like.
I should also mention I do in fact use Arch btw.
I'll second Debian. I toggled between Ubuntu and Fedora for 10 yrs. Too many dodgy updates on Fedora, too much "is that package a deb or a snap" on Ubuntu. After working in RHEL based companies for many years, I switched to Centos and fought the out of date packages (sometimes building stuff from source) until the IBM takeover. Debian has been a good middle ground with newish packages that I rarely have to fight to get my work done.