There is plenty of legal background for France (and Europe more broadly, eg the German NetzDG) there if you'd care to read the piece, including reference to numerous censorial provisions of French law which make France suboptimal vis a vis the U.S. for social media operations including Loi no. 2020-766 du 24 juin 2020, the EU DSA, and the applicable French aiding and abetting statute, the last of which would not have been usable against Durov in the U.S. absent specific intent to commit an unlawful act.

The conditional immunity under the DSA is also not as comprehensive as the broad immunity under Section 230, but that was out of scope so I didn't get into it. I do admit the piece assumes some familiarity on the part of the reader with the existing problems around the EU regulatory schemes relating to speech and content removal.

If you have any constructive suggestions I'll be happy to consider including them and giving you appropriate credit, just chuck them in the comment section. tl;dr though, in my view, France is not a great place to incorporate and run a social media company.