Not the OP, but I support Ubuntu as desktop and server OS for an engineering collage and have for 10ish years. Some LTS upgrades don't require many changes (mostly minor package name changes) and some take months of work to get rolled out (mostly for workstations, the server upgrades are usually quick.). Not everything gets upgraded every new OS release. If we had to upgrade everything every 6-12 months it would eat up a significant amount of time for our small team.
If you use Copr (Nvidia Drivers, Non-Free Stuff) you need to ensure all your Copr packages work fine in the next version of Fedora. A ton of packages haven't been updated for Fedora 44 and this will cause issues.
The same applies if you use Terra
I've had issues with Ubuntu/Debian upgrades more than once. Some third party binaries breaking with the update. Or some specific config tweaks that break, because the structure of /etc changed too much.
For some small VM with a specific purpose I prefer a distribution that changes as little as possible for as long as possible. Less work, more uptime.
The naming conventions drive me crazy as well. When you deal with 2 things that have dumbshit naming conventions, like ubuntu and ROS, its really obnoxious to pretend to case enough to keep track of.
For updates, Debian and Ubuntu are great. For upgrades… not so much for me.