I was in Paris this year, for the first time in 10 years, and frankly, I didn't notice less traffic. All streets are full. There are certainly more electric cars, and fewer old ones. However, the streets are now crowded with Uber and taxi cabs. I didn't notice fewer cars.

A lot of streets have been closed to traffic (school streets in particular), and many lanes have been converted into bike lanes. It was harder to get around the city as a pedestrian/cyclist a decade ago.

It also really depends on where you went in the city. Were you just hanging around ile de city and the marais?

I go between NY and Paris and it's insane that New York basically has zero pedestrian streets, while Paris has so many. I used to live in SF and Chicago before, and same, there are no pedestrian streets, why?

Because the whole point is to stop poor people from driving and lining up the pockets of the car manufacturers.