For Red Hat, there's no longer an official "public" distribution of RHEL, but apart from that they seemingly have been left alone and able to continue to develop their own products. But that's only my POV as a user of OSS Red Hat products at home and of RHEL and OpenShift at work.
https://www.centos.org/centos-stream/
And Fedora is still the upstream of RHEL, nothing changed there.
CentOS Stream employs a rolling-release model, which is much less stable than RHEL.
The previous main selling point of CentOS was bug-for-bug compatibility with RHEL. Red Hat is just killing the distro by moving their focus to a non-existent market. Enthusiasts will choose RHEL, while enterprises would choose the more stable RHEL, which Red Hat could earn money from, or alternatives like Alma or Rocky.