It's become interesting to follow what appears to be a re-invention of the model taking place as
CIQ seeks to be for Rocky Linux what Canonical was for Ubuntu (hopefully, better!). There are, to be sure, significant differences between the two pairs' interrelationships; but it will be interesting to see the differences in approaches between the two. Might even make it worth exploring the Red Hat Universe again.
If I want to leave Ubuntu-world for my (nominally-headless) server, what would be the path of least resistance? Debian?