I want to know if it’s reasonable to expect a degree of privacy with stock android.
after removing OEM and Google bloats with Universal ADB Debloater, practically none. There are some stuff occasionally like google connectivity check, so you gotta use something like rethinkdns or afwall and only enable net access for apps you need.
Depends. Can you share the device name in question? Also, if you use the default OS or a custom rom with/without play services.
OP explicitly says stock Android, not a Custom ROM.
There’s not really a stock Android though. Every manufacturer has its own flavor, so unless you go out of your way to build AOSP for your device, it could be anything.
Yes, as I understand it, by “stock” Android OP meant any of these OEM-supplied Android installations as opposed to a custom version you’d install yourself. Although the “stock” Androids are different from one another, they all share the same relatively poor baseline privacy because they all send data to Google, on top of which they may also send data to the phone manufacturer and the cell network provider and possibly other organizations. This contrasts with custom versions of Android like GrapheneOS which are designed to be better for privacy and send less data to Google.
