I think the important part is about who is running the server, rather than who made the software

The fediverse is interesting in that context because each instance can decide where they set up the infrastructure or how they process data / requests. The same applies to self hosting

I saw an article that outlined which country each fediverse platform "originated" from, such as Canada for Pixelfed and Germany for Mastodon. That's fun to know about, but otherwise not important to users compared to the instances themselves

At most it might speak to which laws will govern the project itself, but even then someone can fork a project that goes astray