> from a users perspective having it on a public blockchain seems like exactly the same product but better in terms of more options

What options? What advantages are there? Better for who, the scammers pulling the rug?

Keep in mind, the oft-repeated promise of being able to move assets from one game to another is a bald faced lie, and that's pretty obvious to developers and even players, just not crypto bros and NFT shills who have never developed or played games, apparently.