Main points:
"The AlmaLinux OS Foundation board today has decided to drop the aim to be 1:1 with RHEL. AlmaLinux OS will instead aim to be Application Binary Interface (ABI) compatible" by contributing to Centos Stream.
AlmaLinux "will also start asking anyone who reports bugs in AlmaLinux OS to attempt to test and replicate the problem in CentOS Stream as well, so we can focus our energy on correcting it in the right place."
This is exactly what Red Hat wants. They want the 'rebuilders' to contribute to CentOS Stream, and as far as I can tell, welcome the efforts of all contributors to Centos Stream.