Shader compilation perf potential? [getProgramParameter]

[mcost45]

I've got a decent amount of different layers (5-10), and by far, the most intensive blocking CPU work done on initialisation occurs during the shader compilation, when getProgramParameter is called:

The getProgramParameter calls take 235ms (combined) on a relatively good PC (i7-9700, RTX 2060).

After some digging around, I found this implementation from mapbox-gl-js, where they were able to remove getProgramParameter calls.

I don't know enough about the Deck/Luma internals to understand if this could also be applicable/make sense for Deck/Luma, or too painful to implement - but faster initialisation would be super awesome.