> I want them to prevent social media companies from tracking my device across my other apps.
Apple is the one who implements the advertising ID companies use to track you. And preventing that tracking is a os-level feature, not a thing they review out of app.
> I want them to require Oauth that allows me to keep my email private from app developers.
Apple is the one who implements the advertising ID companies use to track you. And preventing that tracking is a os-level feature, not a thing they review out of app.
> I want them to require Oauth that allows me to keep my email private from app developers.
You are describing a private email address.