App permissions give you the ability to customize and control which capabilities you give apps. You can pick and choose which permissions to grant apps at the time of use.
Turning off certain permissions may result in basic features no longer working as intended.
To turn permissions on or off for installed apps:
From a Home screen, navigate: Settings > Apps & notifications.
Tap App permissions.
Tap the appropriate app.
Tap any of the available permissions (e.g., Camera, Contacts, Location, etc.) to turn on or off .
If turning off a permission, from the "If you deny this permission..." prompt, select Cancel or Deny.
The image below is an example.