CentOS Stream 9: Understanding the new Red Hat OS release for non-Red-Hat-type people

Red Hat has released CentOS Stream 9, the first major version since the company badly shook its community by announcing it was ending traditional CentOS a year ago. This is the second release of the new CentOS Stream distro, and presumably the IBM subsidiary hopes it will offer a more appealing migration path for CentOS users than for them to jump ship.