You lose customers to those products. I’ve switched to CoMaps. Some of my friends went back to Google Maps—the differentiator for Apple was privacy and that seems to have been lost in kind even if not yet in magnitude.
Yup. If the main differentiator is gone, you move to the next marginal thing that matters, which in this case is working as a map.
A number of times I’ve been set to the wrong place by Apple Maps.
If you’re going to be served ads either way you might as well pick the more reliable tool.
For maps Apple has a lower quality product, that lets me down when I really need it, and has no privacy advantage.