It's also important to keep in mind that fraud is rampant in NFTs, such as the same person faking transactions by essentially buying his own asset with a flash loan. This means that the paper trail is left behind but no sale actually happens.

The most expensive NFT to date was the result of such a fraud.

https://www.cnet.com/news/why-this-cryptopunk-nft-sold-for-5...

Relevant link: https://en.wikipedia.org/wiki/Wash_trade

I'd bet that if someone bothered to trace the wallets used in the transaction, they'll find out they start and end at the same person.