Centos is 100%, factually not a rolling release. Rolling releases don't deploy based on version, they do it based on snapshot. That is quite literally the only defining characteristic of a rolling release and Centos does not share it. Centos deploys by version AKA a point release schedule. Centos 9. Centos 10. Centos 11. Actual rolling releases don't have this characteristic. There isn't an Arch 5, or an OpenSUSE Tumbleweed 23.1, or a Void Linux 4.8. There is just Arch, OpenSUSE Tumbleweed, and Void Linux. Maybe you have Arch 2023.29.6 snapshot but that is not the same thing.
"This is in contrast to a standard or point release development model which uses software versions that must be reinstalled over the previous version."
This is exactly how Centos works. It's also how Red Hat, Ubuntu and Debian work. Are Red Hat, Ubuntu and Debian rolling releases?