Is there an Android build that can easily switch between fake and real data from its API's for the App to consume.

Use-cases : Winix Air filter app : Has no reason to need location info, yet app won't even open w/o giving it this info.

Same logic for browser if such a thing exists.

Some examples : https://github.com/essandess/isp-data-pollution

https://noiszy.com/#how-it-works