I've only seen one stat and it shows that, in Atlanta, following an E-efooter ban, average commute times increased 10%.
https://www.sciencealert.com/the-city-of-atlanta-banned-e-sc...
https://www.sciencealert.com/the-city-of-atlanta-banned-e-sc...
Most stats show that they don't reduce car usage, the people using them aren't people that give up cars, but people that give up on walking or taking public transport.