Like making you take an extra 10 turns, take a longer route, and drive on too-narrow roads, to potentially save only several minutes of being stopped in traffic.

What are vignettes in the context of driving?

Fact check: the French govt did not create Matrix.

Matrix is an open protocol created in 2014, for an Israel-based private company.

In 2018 the french govt decided to use a verson of that protocol in their own chatting network.