[ladberg]

Yes, but using .reality files is better for stuff like games in RealityKit. For example it would contain a GPU-ready texture instead of a jpeg (and a lot of other differences), so it's more in-line with how assets are typically loaded in games.

[dagmx]

Generally it never makes sense to use interchange formats for a runtime use.

Take the predominant game development format: FBX. It’s used strictly for interchange not runtime.

The use of USD is exactly the same. You’d compile it into a runtime friendly format that benefits your specific runtime.