All Watched Over by Machines of Glue on Pizza

As an owner of both a pinephone and a pinebook pro I would say don't with the phone unless you're really prepared to completely upturn everything you do with a phone. It's really not at a place where it's a simple consumer-grade device to be used in place of your current smartphone. My pine now gets used as a part of my home automation setup and it works well for that. The pinebook, however, is absolutely magnificent and I take it with me anytime I need a device I'm not so worried about losing and that crucially CAN CHARGE OFF A PORTABLE BATTERY OMG!

Firefox then additional hardening through arkenfox.js, minimal extensions - uBlock + Bitwarden.

Agree with a lot of the comments here, whether it's privacy or not wanting to use GAFAMmmy tools, there are better options than ungoogled chromium. For privacy: https://privacytests.org/ (maintainer works at Brave, but by and large this site is useful)