This doesn’t seem correct to me.
Products would still be searchable, but the wealthiest companies could no longer pay for placement or pay to have their brand name repeated endlessly so it’s on the tip of your tongue but you don’t know why.
People would still talk in their communities and share recommendations.
Reviews (unpaid) would still be a thing.
Markets (real and virtual) where you can compare competing products and make a decision wouldn’t go away.