NFT's are simple to understand. Picture an enthusiast collector of some franchise. That person would be interested in officially "owning" a digital piece of his interests. If other people also care, there's a market value. If nobody else cares, the collector is still happy. In this sense, there can be value to NFT's.

Because of the crypto craze, NFT's have bloated into a silly and temporary demand bubble, where people will buy truly pointless things because it's in vogue. However, people buying randomly generated nonsense doesn't mean there isn't value to be found in official artwork by certain people.