Thanks I just opened a Trading 212 account, and yes, it is available in France. For those interested, my first observation is that Trading 212 does not offer a multi currency account.
You have to decide, at registration, if your account is in EUR or USD, you cannot have both, and you cannot change that choice once your choice is made. For example, if your base account is in EUR and you are selling USD stocks, Trading212 automatically converts the proceedings of the sale to EUR, so you cannot keep the amount in USD, if you base account is EUR.
FYI, multi currency accounts are the #1 voted feature request in Trading212, but there is no indication of admins that it is in the roadmap. Revolut is clearly ahead, on the currency front, but it is too bad that Revolut Trading does not offer the stock that I want to buy, so I have to open an account in another platform.