Everything surrounding code: issues, CICD, etc, is obviously another story. But it's not a story that is answered by distributed git either. (though I would love a good issue tracking system that is done entirely inside git)
That's what Github is though, it's not about the code itself it's about all your project management being on Github, and once you move it, moving out isn't realistic.
Sad to see that Mozilla is becoming less and less what they promised to be once Google funding are depleting.
The issue tracking can be a branch and then you just need a compatible UI. In fact some git front ends do exactly this.
CI/CD does already exist in git via githooks. And you’re already better off using make/just/yarn/whatever for your scripts and rely as little on YAML as possible. It’s just a pity that githooks require users to set up each time so many people simply don’t bother.
It's very silly they have to do this, but at least they can I suppose.
There are several such solutions already. The problem is that neither of them is popular enough to become a de facto standard. And, of course, centralized git providers like GitHub have a vested interest in keeping in this way, so they are unlikely to support any such solution even if it does become popular enough.