I am off to France next month and just found out that since Sept 2018, drones over 800g need to be registered, insured and you need to take an online exam (the Mavic 2 Pro weighs 907g). I was delighted to find that it was quite a simple process. I should admit that I had about 6 goes before I passed! There are 20 multiple choice questions to answer and some of the answers are quite cunning and you must start again each time you fail. It costs nothing and you can print off your registration certificate and certificate to prove you have passed the training. You must attach the registration number to your aircraft, and it must be readable from 30cms or less. Both certificates are valid for 4 years and you have to have them in your possession when you fly.
An interesting and IMO a worthwhile exercise. I hope the British version will be very similar and cost nothing too. But I have my doubts. The website is at https://alphatango.aviation-civile.gouv.fr/ and you can read it in English (see bottom r/h corner of website to change language). The exam questions are in English too.
The French RFZ map can be found at https://www.geoportail.gouv.fr/donnees/restrictions-pour-drones-de-loisir and looks like the map has measles. Each group of houses seems to have its own NFZ (Red -Forbidden to fly at any time, Pink – OK to fly up to an altitude of 30m, Orange – OK to fly up to an altitude of 50m, Yellow – OK to fly up to an altitude of 100m & White – OK to fly up to an altitude of 150m. These zones relate to leisure flights and I have no idea what the score is with commercial drone flights.