Uh, why not? What about that is handled at the protocol layers the internet covers?

But here's the thing, this seamless interoperability thing...that's not something any protocol is going to solve. That's going to take an immense effort for any engine to support some standardized content. And that's...probably just not going to happen. If you spend any time in gamedev, and you understand what engines and shaders do, it's an absolute pipe dream to imagine all software working the same way. Not only would that annihilate performance, but it completely hamstrings the ability for people to make unique, creative products.

We should absolutely not want this.