Data is processed on the user’s device where possible, for example, in creating predictive traffic routing which displays estimated travel time on a device’...
https://www.apple.com/jp/privacy/docs/Location_Services_White_Paper_Nov_2019.pdf
these privacy protections. Safari minimizes the amount of data collected by Apple and shared with third parties. Where possible, Safari’s privacy protection...
https://www.apple.com/jp/safari/docs/Safari_White_Paper_Nov_2019.pdf