Earlier quoted context omitted.
Right, but the price one pays are outdated packages. CentOS 8 was released few days ago with kernel 4.18, which not even LTS is, and is older than the current Debian stable kernel(!). If you need to install anything besides the base distro you need elrepo, epel, etc which I'm not sure can be counted as part of the support.
RHEL kernel versions are basically incomparable with vanilla kernel versions. They have hardware support and occasionally entire new features that have been backported from newer kernels in addition to the standard security & stability patches. This means that RHEL 7 using a "kernel version" from 2014 will still work fine with modern hardware for which drivers didn't even exist in 2014.
They bought some fancy new computers at work. Our procedures say to use CentOS 7, so we tried it, it ran like shit. Then we reinstalled CentOS 8, same. It worked, but the desktop was extremely slow. After much hair pulling I found the solution: add the elrepo-kernel repository, and update to kernel 5.x
No amount of backporting magic will make an old kernel work like a new kernel.