You have already answered your question. It's a hype and like all hypes, they have a duration. Just like when the ICO and subsequently, the DeFi hypes came and went. I think the NFT hype is ebbing. Sales dropped
Everything will obviously subside in time when the users have started to dwindle and the fans have started to switch to new things that are better and also profitable, so it is very normal for this to happen to anything new in the crypto space.
One of the effects of the decline in market interest is the misuse of NFT itself.
not many understand how exactly the function of the NFT which has a very expensive price. that's a question for everyone who doesn't understand the NFT market yet.
some people, just take advantage of the NFT market to take advantage of the hype that is going on. make their own NFT and market it. You can see several platforms that provide NFT marketplace features. and it's getting tighter.