I don't think that's actually all that important. It's fundamental to an understanding of NFTs, but not their role in any sort of money-laundering, since you can also just make NFTs using some AI-generated art or make 5000 NFT's from one low-effort art you do own.

All money laundering needs is the non-fungible part, which is easy to do, just stamp the corner with a limited-edition numbering mark and the 500 fungible digital tokens of a single art become 500 nonfungible tokens.