Everyone knows git is decentralized. What people are searching for is a space for the social component of development such as issue tracking. Being able to reference lines of codes in issues is a killer feature of github. Gitea and gitlab do it too but not as well.

Also "just use multiple remotes" doesn't solve the problem. If you don't trust GitHub you shouldn't be pushing code there to begin with. So the ideal platform for hosting an equivalent platform as Github needs to be a trusted one as well.