How much work does the GPU do depending on the stack you use? | One Dev Question

The Discussion

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  Please give us a lot more discussion about the visual layer, about UI.Composition and what is it's purpose, about writing custom UI layers - which part can UI.Comp provide and what has to be hand written. Where's the intersection between UI.Comp and Xaml. How might we use UI.Comp with CoreApp template to provide a UI layer for our SharpDX games. I see UI.Composition there, but you don't talk about it. I'm not sure what it's purpose is, or how should I use it. What are it's limitations, what it's capable of. Can Xaml be completely replaced or is it meant to complement Xaml? I just need a lot more info and discussion and experimentation.