NFTs are storing links to pictures
Coins are storing the state of the ledger.
Exatly same technology
NFTs are… well they added the concept of nonfungibility. It's interesting, albeit currently without useful applications.
But take "blockchain land registry". The blockchain will be a pointer to a physical house, or piece of land. In that way it's pretty much exactly NFTs, but I would not say they are exactly cryptocurrency.
So if cryptocurrency, NFT, and land registry are A B and C, then I would say that B and C "are the same", but A and C "are not", but A&B as you say sure are very similar.
Note that I'm not saying blockchain land registry makes any sense what so ever. Because it doesn't. A block chain will never decide who owns land, because courts and government does, backed by the power of the police.