Dangerous opinion, I’ve recently moved to Fedora after Ubuntu and after customising it on the GNOME desktop, it’s literally Ubuntu (But better) in every way except no snaps.
Personally as someone who got the ground running using Ubuntu as my 1st Linux distro, fedora is a comfortable transfer and I really like their spins.
Sure DNF can be slow but you can fix that and sure redhat can be a little… difficult with their decisions.
What do you think of Fedora? So far I enjoy the stability combined with near-arch levels of getting new updates!
Fedora updates the kernel because maintaining backports is engineering-intensive, Ubuntu backports fixes into their kernels. I don’t think Fedora kernels affect Red Hat much at all, Red Hat does extensive back porting into a set version and their stable kernel often has hundreds of releases of the “same” kernel version.