This would make it harder for French users to find an alternative browser, making even more people will stick to the pre-installed Chromium based one.
Sad as it is, I think this is the optimal solution when it goes through. A lot of EU countries are against monopolies (France is not an exception), this way they would realize they are enforcing a monopoly and singular dependency.
Tip:
Export your books from goodreads: https://www.goodreads.com/review/import (at the top of the page)
Then import to bookwyrm at: https://bookwyrm.social/import/
Lots of people use their vanilla browser when connected to a VPN, this is not just for Tor, neither does it claim to be an alternative to using Tor browser or Mullvad browser.