> The Court ruled that individuals have a reasonable expectation of privacy in the detailed, comprehensive record of their movements that CSLI provides, even though they share it with their carriers. This decision limited the "third-party doctrine," which previously suggested no privacy rights in information shared with third parties, and established that the unique nature of cell phone data requires greater protection.

Additionally, the decision was narrow, applying specifically to historical CSLI.

The issue of buying location data from a 3rd party company as part of a service has not been argued.

> the FBI has confirmed it was buying access to people’s data collected from data brokers, who source much of their information — including location data — from ordinary consumer phone apps and games

This is completely different from CSLI, you are agreeing to provide your location to these apps and games, as most require it, and, finally, a majority of these EULA state that the data may be shared with 3rd parties.

SCOTUS makes narrow rulings all the time and this is one of them.

The argument that you are expressly providing your location information and agreeing that it can/will be shared with a 3rd party who can then do as they please with your data is not a violation of the 4th amendment and will be excluded from the 3rd party doctrine.

Many people won’t agree with this, and if ever argued in a court, they won’t agree with the ruling when it’s allowed to continue.