I think the video says that the misleading MicroSD listings are from Amazon Marketplace which allow 3rd-party sellers and people to sell products like MicroSD card.
I think reading seller reviews, and shopping at sellers with many good reviews can help at avoiding being scammed.
I was lucky enough to have a pretty big Micro SD amount of storage. Not sure if the description on the microSD was accurate but the storage although not exactly accurate when formatting, still works properly. I got one at a retail store prior that works and the one I got from Amazon was Samsung.