Unixcop published a tutorial about migrating from CentOS 8 to Rocky Linux.

How to migrate from CentOS 8 to Rocky Linux

Rocky Linux is a Linux distribution that is intended to be a downstream, complete binary-compatible release using the Red Hat Enterprise Linux operating system source code. The project’s aim is to provide a community-supported, production-grade enterprise operating system. 

How to migrate from CentOS 8 to Rocky Linux. - Unix / Linux the admins Tutorials