In short, you cannot screenshot an NFT.
Or at least not in the way you think you can.
You can absolutely screenshot the image that comes with an NFT, but that’s not actually what an NFT is; it’s only a feature that comes with it.
See, NFTs come in two parts. The image behind the NFT, which you’re probably familiar with, and the code or smart contract that makes an NFT an NFT.
NFTs stand for Non-Fungible Tokens. The key word here is ‘token’. When you own an NFT, you don’t own the image; you own the token that comes with the image.
This token is a by-product of a published smart contract