@bkhl @clacke It depends on what sort of compatibility you're after. Are you looking for binaries that link and run? Are you looking for a stable, slow moving "enterprise" platform? Then it's perfectly fine!
There can be bugs. I've found bugs running software on CentOS Stream, which sure enough showed up in the next RHEL point release.
If you're running a shop with ISO QC requirements, that would be a problem for traceability, in a way that recording a RHEL release number solves for you. In particular, if you're such a shop, and CIQ or CloudLinux has sold you a cheaper support contract than RedHat would, with the promise that their RHEL rebuild should qualify for the same certifications, this is relevant.