Comment by microtonal

You may not realize it but this isn't even about law enforcement. It's also about tech companies having the data.

This. The lesson of the past decades is: if some organization has the data, eventually it becomes too attractive not to (ab)use it. Even Apple, which sold itself as a privacy-first company is slowly adding more and more ads. Squeezing out more profits is just too attractive with the pile of data that they are sitting on. Similarly, bad governments will require access to the data if they can.

Employees inside companies should push back collection of data as much as possible (the GDPR helps a lot in Europe). If you do not have the data, you cannot use it in a user hostile-way in the future and governments cannot request data that you do not have. If you have to store data, go for end-to-end encryption.

Citizens should try to escape the Apple/Google duopoly (e.g. by installing GrapheneOS), block trackers, and only install the necessary apps (no app = no easy tracking). For apps that you do need, revoke as many sandbox privileges as possible.