

It is effectively the case. Given the influence that California and New York hold, and the size of their markets, they can effectively create state policy that makes national compliance a foregone conclusion. If you look at the example of “known to the state of California to cause cancer“ Labels, you can see how this works in action. 
I find that Apple Maps gives very solid arrival estimates. When I used Google Maps it always seemed to over or undershoot the length of time it would take me to get where I was going in the moment. I also find that Apple’s voice guidance seems to be better and clearer about what it wants you to do. I switched over to it exclusively about two years ago.