[Zanfa]

This is what puzzles me. Taking your Xbox gamertag on the blockchain as an example. It doesn't provide any decentralization, Microsoft is the central entity that gives the gamertag it's value. There's 0 incentive for Sony or any other competitor to honor the ownership, because why would they. It's more beneficial for them to let you register an account (with a potentially duplicate name). Since your NFT is in reality tied to a central entity, I'm having a hard time understanding why you need the blockchain in the first place, at the end of the day it's MS that calls the shots. The reason why Xbox & Sony don't interop isn't a technical problem, but a political one and blockchain does nothing to address the issue.

And from the looks of it, everything crypto is centralizing extremely fast, see Binance/Coinbase for exchanges, Opensea for NFTs. So at the end of the day you're still at the whims of large entities.