Yeah well Paris is much less bike-friendly than you would think reading all the English-speaking articles about it. There are more and more bike lanes but very few dedicated parking spaces for bikes, and almost zero secured ones. There was an attempt to build some near train stations, but they are always out of order (and you need a valid subway card to access them!)
Paris is also not flat, so unless you're super in shape it's difficult to use a non-electric bikes (depending on the journey, of course), and ebikes tend to be stolen much more than regular ones.
In other French cities, I don't know enough to have an opinion; I think Strasbourg is a little bit better.
