> Walmart is demoing a scan as you shop system that I think relies on user cameras and the app. At least that was my impression.

Walmart and Sam’s Club have both had this for years. It is only available at Walmart if you have Walmart+. I tried it when I had a Sam’s Club membership and it was ok but occasionally I’d have account issues, alcohol purchasing issues, and someone still wants to see your app receipt when you walk out the door issues.