Blinking Red light beside ear peice

I have a cringy question- so I recently got a new iPhone so I decided to make a ad online to sell my other iPhone - when I take a photo or record a video of my iPhone 11 with my iPhone 12 - through my iPhone 12 phone I see a red blinking light beside my iPhone 11 Pro’s ear peice while looking at it on the my screen (the iPhone 12 ) - hopefully I elaborated that in a way that doesn’t confuse readers - **mind you I only see the flashing red light beside the ear peice through my other phones screen I don’t see it while just looking at the phone - and the red blinking light is not a reflection from me capturing a photo or video - I even tried taking a photo of my iPhone 12 with my iPhone 11 Pro and seen the same red light beside the ear peice ... I could be over thinking but does this prove iphones front screens are being survallienced low key ? Lol... try it on your iphone ! The right light is under the lens to the left of the ear peice - I even recorded the same red light on my iPhone 5c - again only visible when recording or taking a photo of the phone 0.o