web3 is completely overhyped and a16z is part of that hype and pouring funds into it.

the promise of web3 boosters , "everything will be on-chain" is impossible to realize. maybe best to see decentralization as a spectrum or something that lies on multiple axes.

something like an NFT on Eth with IPFS is platform-agnostic and transferable only by whomever has the private key. that owner can also self host the file if they want. but there still will be centralized platforms, pinata hosting, AWS, etc build on top of this ecosystem to make it easier and to attempt to capture value where possible (openSea charges 2.5% on each trade).