My longest was when i went 100% Full time on my main machine (no dual boot), I stopped distro-hoppping. I Installed Debian stable when it first came out (Jessie) and stayed with it until it shifted to “old-stable” which was a little bit over 3 years.
A lot of people give Debian stable a hard time but i found it worked well. Most software that i needed to be a little bit newer i could get from the backports repository. It was only at the end of it’s lifecycle that i noticed started running in to software being a little to old for what i wanted to do. Then i went back to distro-hopping for a while until i found my next home. :-)
I think it is one of the more interesting recent distro’s. Gaming set up out of the box. it has one of the easier zfs on root install options. Has plasma 6 which a lot of “major” distro’s do not have in their stable release yet.
I tried to use it on my laptop but i have a piece of hardware catchy doesn’t like. Dev’s were helpful when i was trying to get it to work, but we didn’t figure it out then. I now know what was causing the problem, so maybe i’ll give it another try.