In 2022 if you aren't buying "Sold by <insert trusted retailer>" on one of these market places then I think you should know what you are getting into.
Normal users don't understand this. They think they're shopping at Amazon, not at QUBAGZI's storefront on Amazon's website. That concept doesn't even make sense to most shoppers. If they typed in "amazon.com", they think they're getting something from Amazon in Seattle. (I mean they don't literally think that every item is coming from Seattle, but they assume that Amazon vets their products like Trader Joe's or Kohl's down the street does.)
I'm not american, but I was very surprised that Walmart had gotten into that business. It would surprise me if similar retailers in my country started this too.