[Sylos]

Chromium is not a de-Googled Chrome. This is: https://github.com/Eloston/ungoogled-chromium

Well, it's trying to be. It's still millions of lines of code and tens of thousands of design decisions made by Google.

The same would be true for your wish of a Firefox-fork, though I'm not sure there's that much sense in it, since what Mozilla has been doing has not infringed on privacy. You'd be patching out things that are harmless.