Someone should tell OP that Android is owned by Google. This sounds nice in theory (and most of this is doable) but we need face the fact that we will be unable to completely remove all these companies from our lives. Apple and Google are the only two mobile operating system companies in existence that aren't literally funded by the CCP (yes I'm looking at you Huawei)

Edit: here's an article about the Google/Apple alternative called OxygenOS (aka HydrogenOS) https://www.androidauthority.com/oneplus-hydrogen-os-11-1146602/

Someone should tell OP that Android is owned by Google.

This sounds nice in theory (and most of this is doable) but we need face the fact that we will be unable to completely remove all these companies from our lives. Apple and Google are the only two mobile operating system companies in existence that aren't literally funded by the CCP (yes I'm looking at you Huawei)