I’ve been using Debian since 2000 (potato).
I’ve occasionally had to use other distros for work (Red Hat or Ubuntu, typically), or to verify/troubleshoot bugs reports in upstream packages.
But my preference is Debian all the way, for servers or workstations.
It’s stable, and it has a great community. Also ideologically speaking, it has the Debian Social Contract and Debian Free Software Guidelines.
This pic made me smile.
I haven’t been to DebConf since before COVID, but I definitely recognize a few people in that pic.