I think having separate standard APIs for screenshots, screen capture, and video capture that aren’t married to one implementation makes sense.
I partially agree about the focus on containers/sandboxes. Yes, it makes sense to criticize that something designed for a different use case results in different trade-offs. But on the other hand, are the use cases really that different? We’re talking about standalone desktop apps, they need some common building blocks no matter if they’re containerized or not, right?
Otherwise I don’t know enough about the standards to comment there, you’re probably right!