Seen at FourthAmendment.com:
There is no reasonable expectation of privacy in one’s Google location data. It’s willingly shared with Google. United States v. Chatrie, 2024 U.S. App. LEXIS 16692 (4th Cir. July 9, 2024) (2-1):
Location History is turned off by default, so a user must take several affirmative steps before Google begins tracking and storing his Location History data. First, he must enable location sharing on his mobile device. Second, he must opt in to the Location History setting on his Google account, either through an internet browser, a Google application (such as Google Maps), or his device settings (for Android devices). Before he can activate the setting, however, Google always presents him language that explains the basics of the service. Third, he must enable the “Location Reporting” feature on his mobile device. And fourth, he must sign in to his Google account on that device. Only when a user follows these steps will Google begin tracking and storing his Location History data. Roughly one-third of active Google users have enabled Location History.
Read more at FourthAmendment.com.