Yes, compared to what it was before, it's booming. But it was ridiculously bad before.
However compared to what's happening in the US, it's still lagging.
Innovation is alright, however investment and risk taking are nowhere close to the American standard. It's still very meh.
The culture of flexibility is starting to sink in, but again, you will face the french "lutte des classes" legacy, with old style hierarchies and management structures.
And of course, even including social benefits, the salary is 2 to 3 times less than in the valley. But they will publish crazy requirements in job offers.
On the other hand, working in France is sweet. Paris is great city, and the life style is super nice. And while French people can have a pretty negative attitude, they won't tell you everything is ok or doable before even checking they can, or be artificially friendly to the point it's weird. All in all, it's a lot less pressure.
Best bet is to actually live in France, but remotely work for an American company.
Plus you can buy actual tomatoes and not red plastic balls.