FWIW, Ilya's recommendation for Kolmogorov book in the Arc viewer is "PAGE 434 onward", which lands on the last chapter "Algorithmic Statistics" (p.425 in the book). Appendix 1 starts on p.455 ...
Azure Linux support has been added recently [1], and so is available for self-hosted Karpenter (you can specify "imageFamily: AzureLinux" in AKSNodeClass), will be rolled out for the managed experience (Node Auto Provisioning) soon.
Anybody else thinks it may have something to do with containers support? E.g. Microsoft a) decided that first-class container support is a must, and b) discovered it is hard / disruptive / intrusive to implement, and/or c) is trying to figure out the right thing to do about Kubernetes?