This is true of all of the services I've tried across Azure, AWS and Google cloud.

Microsoft are always last place in terms of performance and reliability.

For Kubernetes I actually keep track of exactly how bad they are with an automated testing tool.

Results of the last test are here: https://kubedex.com/is-azure-kubernetes-aks-any-less-terribl...

I've complained about UX before in the context of the Azure portal being, in my opinion, terrible. But that's subjective and I respect that others may like it, although not sure how they do.