I did understand the question. I think you're somehow confusing "built on git" with "we used git while we built it." But that's honestly just a weird guess. I really can't figure out how you could be confused about any of this.

I hope the definitions shared in the sibling comment will help.

> Then why do they bring Git into the picture? They are not comparing themselves to Git...

I would find it very strange if Github didn't mention git. It would be equally strange if radicle didn't mention git. They both wrap git.