The NFT buzz was a new altcoin wave that hit around the same time that De-Fi became a buzz word so you had lots of people exploring projects that only had speculative use cases, like price go up, which it would until someone realized their trillion funjoeshibags were worth thousands and could just swap and take all the BTC value. Most NFTs similarly are a way to distribute 'maps' leading to 'art', but don't have any inherent value.