Now I feel like the scene is mostly American. Any modern French electronic artist?
You mention Madeon which I think is more like "electro pop" or "nu disco" (I don't like that term but hey) so maybe you'll like the following if you don't know them...
Agar Agar:
or Kid Francescoli:
https://www.youtube.com/watch?v=fdixQDPA2h0
or, more on the chill side, L'Imperatrice...
"Erreur 404": https://youtu.be/eyk-Sliy8RU
and say "Parfum Theremine": https://www.youtube.com/watch?v=5Ksp63RJuaU
Feels like I'm giving away the secret sauce here but try French 79, Kid Francescoli, Sébastien Tellier, L'Impératrice, or Isaac Delusion.
Blue Planet Corporation - Blue Planet
Art of Noise - The Seduction of Claude Debussy
* L'Impératrice - ( A View to a Kill, many others )
* Busy P ( Il fait chaud - Busy P Remix by Corine )
Later on that night, I saw him on the other room’s dancefloor soaking up an 8 hour set from Laurent Garnier. He’s in it for the music.