I've been away from blockchain for the last 3 years, but from what I checked most NFTs claimed some vague attachement to a real world asset, but no actual conne

I've been away from blockchain for the last 3 years, but from what I checked most NFTs claimed some vague attachement to a real world asset, but no actual connection. As in "here is an NFT attached to this art piece" -> "what rights does NFT actually give to you?" -> "well, sentimental rights"