it looks like the trend in NFT is just passing. even take as an example the new blockchain of Sui 90% of NFTs that have released outright garbage on it and has no value. The other day they handed out, as it were, unique NFTs and it is not clear what they are for and what benefits they bring at the moment, there is a lot of uncertainty.
well sui has been known to have many failed projects emerging in their blockchain, maybe because the devs has already drained sui of their demands since their presale was so massive it raised so much money.
after that it went downhill, so can't really use these NFT released in sui as something to determine whether NFT is just passing trend.
but I think its true though, NFT right now just used for occasion like identifying airdrop receivers, and nothing more.
I consider that somewhat finally NFT finding its real use case not just some gimmick unlike before, maybe NFT arts that gets priced millions are just passing trend like you've said but honestly NFT itself is good technology.