I have been using FF Nightly on Android for quite some time. In addition, I have uninstalled or disabled every Google app I can find on my device. Last year, I switched to unlimited mobile data and (almost) never use WiFi, even when easily available. I use DDG instead of Google.

  Consequently, I am never nagged by Google apps or social media apps. I just don't have any problems like what I hear other people experience. Particularly amusing is seeing that my inferred location is way off.