That's not true. There are projects which are not maintained by RH. Also, anybody could have registered that name before RH... You could have done so.
Podman, Buildah, Skopeo and Crun are ALL redhat projects. OSS = Open code (ok) + Open Governance (not ok). In the "containers" org there are currently 23 maintainers, 99% RedHat employees (with a few indies - you always want students contributing for free). This is a great example of enterprise OSS shitshow, whereas a large org register a fake org on github with an intended "open" name - but keep close control on the governance of projects and tries to push (implicitly) its technological stack as a standard.
Disclaimer: I fucking hate enterprise vendors.