Not yet (I have a meeting soon that is semi-relevant, but higher level and a couple next week where I could raise it again). There are a few efforts I’m aware of, but they are at various stages.
I do like driving these with specific components. I would also ideally have it be such that the compiler team need not be a bottleneck here as that also doesn’t scale. And I believe separable convolutions have been on your list for a long time