Yeah, I always check the Sold by Walmart box, and I need a good reason to go outside that list. It's just just about returns. Walmart does supply chain quality control that does not seem to happen as reliably on the 3rd party listings. (edited because I'm sure some 3rd party sellers are legit. target for example offers a selectable but short list of sellers, I imagine you could check them for reputation)

This isn't just Walmart though. Most non-Amazon websites have a similar option. Lowes, Target, NewEgg...