you can manage all individual app settings by long pressing on their icon > app info > app permissions
Can I just install Vanilla Android??
there isn’t anything specifically called “vanilla” android, one way or another all android devices are customized to device they run on, android on smart phones incorporate the features provided by its hardware manufacturer. the situation is similar here as well, the android firmware is provided by amlogic themselves, and it further tweaked by khadas to support whatever functionality is offered by the board
if you can, I would consider looking into trying AOSP firmware, if that is what you require by “vanilla” android
refer to here: