GrapheneOS is a de-googled Android OS with hardened security, and privacy centric features. Famously used recommended by @Snowden at some point.

I really do recommend it if you have a compatible Pixel device. Theres a slight learning curve to get it setup but after that its easy.

Its worth noting that you can still use Google apps and use Google Play Store with it, if you choose to. 👍

https://grapheneos.org/

Anyway, one step at a time. Takes a bit to get used to no FaceTime, iMessage etc.