Have Android phone

Don’t bother signing into your Google account

Download Canta, Shizuku and f-droid apk and install

Use canta to uninstall every Google app that isn’t strictly required

Chrome, Gmail, Drive

Weather, Launcher, News

Clock, Keyboard, even the damn Calculator

Everything. Canta actually tells you what is and isn’t safe

Replace everything with open source alternatives as you go (don’t forget about a keyboard alternative)

Get APKUpdater to install and update apps that aren’t on f-droid from various sources you can choose

Have hastily degoogled Android phone