Just FYI it's not young, but grew crazy maybe in the eighties (or seventies? IDK). They have a lots of startups (I left 2016 so take everything I say with that in mind) and tries to make videogames as Ubi has a studio there (I knew some overworked people from there, I made games in Paris befor moving to Montpellier) but the scene was worse than meh.
If you can get Paris I'd recommend it, but as you say, it's a bit crazy but if you're young it's the place to be. Spent some 10 years there.
There is Angoulême which has lots of animation and/or graphic stuff, heard a lot of positive about it, a small city but close to Bordeaux and Paris (speed train).
Do your research, there is a lot of fluffy mediocre "schools" everywhere.
Good luck, and if you have any questions, don't hesitate!