I can’t help but notice most (all I’ve seen anyway) of the federated projects are hosted on GitHub. GitLab is also not federated, but can be self hosted and has at least discussed it.
I am fully aware of my bias for GitLab over GitHub, but I still wonder why is those things? Is there a federated source hosting project?
Because you want your own projects to be discovered and hr departments only know GitHub. GitLab is awesome but it is mostly used for corporate projects or private projects. If you host a public project GitHub is the place to be.