Even CPanel does not support CentOS 8. And CentOS 7 is dead on 2024, but acctually already dead now 🙂 no futher development.
AlmaLinux created by Cloud Linux a commercial distro, so AlmaLinux features must be limited, otherwise they can not sell Cloud Linux.
Rocky Linux led by Gregory Kurtzer, founder of the CentOS project after RedHat decided to switch to CentOS Stream. CentOS Stream tracks just ahead of a current RHEL release. CentOS will no longer be a stable point distribution but a rolling release Linux distribution.
So, IMHO aaPanel should focus on Debian/Ubuntu and Rocky Linux.