Similar to the digital billboards I imagine mainly for advertising/marketing purposes

That looks like an IR receiver, maybe how they set prices.

I used to work at Best Buy in the stores - not a camera lol, it’s for the scanner to set pricing and it also allows it to connect to the secure network in the store, as there are nodes ran throughout for it to connect.

These Mark Rober videos are getting out of hand

Wat

Here’s a quick article on the matter but there are many better news covers on this subject https://oohtoday.com/are-using-cameras-on-billboards-to-measure-data-and-demographics-privacy-violations/