Almost all the recent features on android phones require uploading crazy amounts of personal information to google's servers. While I had an android phone every new feature felt like a faustian bargain - "Let us store a bit more information about you and we'll make your phone better! C'mon it'll be fiiiine"

Governments don't need to touch your device when its uploading copies of everything to google's servers anyway. They can just ask google for the data directly.

And to be clear about what we're talking about, if you say yes to all the prompts (which I bet 90+% of people do) then google stores location history, audio recordings of all 'ok google' requests, email, contacts, call history, search history and a list of installed applications (so they know which 3rd parties to go after for more data). I don't know if they store SMSes, and I'm not sure what the update frequency of the location data is. But if you use google services, there's not much else for a device level backdoor to do.