No, it doesn't. I will tell you my experience.
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.
