Ahhh makes sense now. Thanks for the context. Looks like we are both on very different terrain. But hey! That's what makes this type of cycling so fun. The range of terrain these CX and Gravel bikes ride, and ride well, is really impressive.
Here's a short quick video from a ride with a good sampling of the terrain close to the city. This is the only real gravel riding I know so a bike that handles quickly is perfect.
https://vimeo.com/336962329
For Paris and the surrounding areas It takes a bit of planning and route knowledge to put together something super long like you have above. I would love to hit some roads like you have above! Looks great!