As far as I remember, you could never zoom in on profiles using the front camera. I've found it easier using a wall mirror to see what's on the screen using the back camera (it's usually a better quality photo anyway). The camera is used for photos and videos. It requires the mic for the videos. You can't turn off the video option and only use the camera for still photos. The remote permission is likely to be able to use a stylus or selfie stick to take photos without needing to press the shutter button, although I'm not certain about the last part.
When doing shotsvlike this I find it easier in fact better to use video and record the area you want to see. You can always zoom in on a recording plus the light comes on giving you better details. Pulling stills from video is simple so try that
