I am mostly just familiar with Kroger's LP, but in my experience their loss prevention is pretty ineffective. They have a lot of cameras installed, but they aren't being constantly monitored. There are actually only a handful of loss prevention personnel, and they spend the majority of their time walking around in stores. They will occasionally catch someone trying to steal a whole cart of groceries or a kid stealing a pair of earbuds. The majority of theft is actually either at self-checkouts or people walking out the doors with pockets full of merchandise. There are also people who regularly get caught stealing, and loss prevention will always keep an eye out for those people.

I didn't work in loss prevention, but I would occasionally have to review security footage in the security office. The cameras, even in the newer stores, were pretty low resolution and had a lot of blind spots. They are put there as a deterrent more than anything else.

I assume Walmart probably has better loss prevention than Kroger, so you could be correct. Though, I doubt all Walmart stores have AI SCO tracking or 360-degree-recording cameras.

I was at a Meijers a few weeks ago (midwestern chain kind of like Wal-Mart but nicer) and the self-scanner started flashing for the clerk when we finished. When the clerk came over, it played a video of me scanning one of the items, and the clerk could see if I had tried to slip something in the bag without scanning it. It was interesting to see.

It may have triggered because we'd bought alcohol, which had to be paid for separately in a special part of the store, and that was still in the cart. But I don't know for certain what triggered it, and, if he knew, he didn't say so.