This is not a coincidence, Apple purposefully make it painful to use anything with any of their products unless it’s one of their products
It is! There’s community-decided standards for how to tag most of these things: https://wiki.openstreetmap.org/wiki/Tag:man_made%3Dsurveillance
A more generalised map of CCTV can be found here with data crowdsourced by people like you on OpenStreetMap.
If you’d like to help map our world, the app StreetComplete is a wonderful place to start (think Pokémon GO but actually beneficial for the world)
I wonder what opposite sides add to
It’s because Apple products are instantly recognizable but the logo gets covered up in media for legal reasons. A big BBC sticker on the back of a macbook just makes it even more obvious that it’s a macbook because it draws the eye to it and often the light bleeds through the thin stickers anyway