Thanks. I'm just about to start the second leg of my VF (from Martigny to Lucca) and this is a useful overview. Last year, I walked from Canterbury to Martigny and the route was not clearly marked in several places and my offline maps often suggested a different route than the official route. My route covered 561 miles in about 40 days.
I did encounter two places in the French Jura Range where the hosts warned me to beware the wild pigs that might be in the area of the trail. Fortunately, I never actually encountered any of them. I did see a lot of deer up in the higher reaches of the Jura in Switzerland.
I use the All Trails app, which lets me easily download VF stages that are taken from the official VF site (which is also useful as you noted) and All Trails works well offline.
The Confraternity of Pilgrims to Rome has a wealth of information and were very helpful in my planning for the English and French stages, particularly as they have a list of accommodations that might not be on Booking.com, as well as certain individual homes that may host pilgrims in some of the more remote parts of the French section.
Your video is a great addition to my library of information I can peruse for the next five weeks.