You can sell open source software and you can charge for binaries and add additional terms on the binaries that restrict distribution. This is how RHEL works. But what you can't do is prevent someone who acquired the source from distributing the source and their own binaries. Which is how Rocky Linux works.

Thanks, I think this is my answer re. binaries. I suppose it also depends on the original license (I think something like the 3-clause BSD license does not allow restricting binaries, for instance).