I'll give you the short answer, what people usually do is that they make mediocre digital art, and then try to sell the ownership of it for extremely absurd amounts of money even though you can just screenshot it and get it for free.
2 ups, 2y,
yeah, NFTs are absurd. They're literally the equivalent of Sellling Digital art, except people say "NFT" because it sounds all fancy and stuff.
"Hello Ma'am, How much is that one?"
"That one? 367,988k."
"You want that much money for a poorly drawn blue wolf?!"