They prob aren’t. But blocking amazon from getting into the market market is a strategyI honestly don't know how Walmart is making money off it. If you let them provide substitutes they will frequently give you larger quantities. Last week I seriously got a 42oz bag of peanut M&Ms the size I ordered was less than half that. My wife always gets giant quantities of stuff for free. 1lb of thick bacon was swapped to 3# bag of same bacon. The biggest was probably 4oz Pepperoni swapped to 2lb bag its crazy. Couple weeks ago she got 25ct 1 gallon freezer bag swapped to 100ct. Those things aint cheap.
My wife does say if she has to go in the people that are pulling the orders now do make shopping inside very unpleasant. Usually they have a tablet and are just wondering around aimlessly.