When you are worried about privacy, the single most important step is to get away from manufacturer-taintedbranded ROMs, Google Apps, and the Play Store. A publication demonstrating that by network analysis of phones' upstream traffic has actually been posted here before.
Privacy-wise, you can essentially get on-par with all those self-proclaimed "privacy-first" OS's by simply installing LineageOS without Gapps and using F-Droid for your app needs. Sounds hard, and few do this, I know.
On the other hand, If you think you can't live without Google services and Google apps, no amount o