> NFTs are poised to unlock the sharing of items between video games, for example.

Of all of the supposed use cases for NFTs, this is one of the silliest. If you've ever looked into video game modding, one of the things you tend to realize is there is nothing close to a standard model format for art assets, so it's an insane amount of work to get an item in game A imported into game B, and that's only considering the work in mapping the visual design--the work that goes into mapping item properties is in some cases just "there's nothing you can do." (And this is despite there existing just three software packages that gets used in practice to make this stuff!)