This is only true in an extremely technical sense. For practical purposes Ethereum is not running PoS. When you make an Ethereum transaction you are interacting

This is only true in an extremely technical sense. For practical purposes Ethereum is not running PoS. When you make an Ethereum transaction you are interacting with the PoW chain. Every single NFT transaction runs on the PoW chain. Yes, there is also a PoS chain, confusingly also called "Ethereum", and yes it will soon become the primary chain, but that does not negate the fact that today nearly all activity happens on the PoW chain.