Android does not leak like a sieve. All you have to do is not use Google services. There are plenty of others if you're willing to pay a little bit. Or pay for GSuite and they turn the tracking off. Nothing in this world is free except a mother's love.
The only thing you have to do is uninstall the Google apps you mean, handicapping your phone.
The Android platform itself is designed to siphon as much data as possible: contacts, pictures, locations, wifi hotspot information, etc.
If you think that you can avoid Google's greed for data just by not using GMail you are way way behind in the game and your misleading comment is harming others which might now feel safe using what is essentially a very evolved spyware OS. Sure, Google are nice and won't steal your credit card number and purchase stuff with it. They just take every bit of info they can get their hands on.
