And I don't watch TV so it won't help either.

After posting my first comment I actually did asked, first at work and later to friends/family ; the only positive answer was from someone who listen to France Inter daily. Otherwise they said they never heard of the guy.

Actually it's an interesting topic because it's far from the first time that I see some journalist talking about "someone famous", and yet I never heard of them.

It seems that there's actually no real "mainstream medias" like it used to be when I grew up, where the vast majority of people were watching the 20h everyday. Talking to adults in their 20s is quite illuminating. Things we could consider "mainstream" are unknown to them. They don't even know they exists.