I could write on a piece of paper that I grant you exclusive rights to the piece of paper and sell it to you for $x. The piece of paper is real, but it doesn’t

I could write on a piece of paper that I grant you exclusive rights to the piece of paper and sell it to you for $x. The piece of paper is real, but it doesn’t matter if there is the address of a house written on it or whatever - the only think you own is the piece of paper. That seems a better description of most NFTs which have no contract meaning at all.