Whats so special about Centos 7? Just migrate to Almalinux and elevate up to 9 [1]. The only big difference that comes to mind is openssl3.
[1] https://wiki.almalinux.org/elevate/ELevating-CentOS7-to-Alma...
[1] https://wiki.almalinux.org/elevate/ELevating-CentOS7-to-Alma...
It just tends to hit RHEL/CentOS harder than other distros because they're considered "enterprise" and thus get used more by the sort of dysfunctional companies who manage themselves into dead ends.
I agree that people should be moving on from CentOS 7 by now and also agree that Alma is a great target. Alma is shooting for binary compatibility with RHEL without just blindly recompiling the RHEL sources. They start with CentOS Stream just like RHEL does.