I don’t claim to be an expert, and i’m definitely not a lawyer but I’ve never heard of anyone being done for any of the various things that the MCN tend to report on, like breathalysers, reflective this and that, etc. I’m pretty sure that all French bikers ignore it anyway so personally I wouldn’t worry about it unless you like riding at 100kph through quiet villages and then flipping the bird at the gendarmes while singing god save the queen.
Although apparently there is a law in France that anyone overtaking a bicycle must leave at least 2 metres. Which they tend to do, from what I’ve seen…