Istio metrics in Azure monitor

I am using istio 1.6 with Prometheus and grafana in azure and it works fine. I wanted to try to send Prometheus metrics into azure monitor. So I read this article: Configure Azure Monitor for containers Prometheus Integration - Azure Monitor | Microsoft Docs. I deployed config map.
Right now I can see some metrics from Prometheus in azure monitor, but I cant see there metrics from istio, for example istio_requests_total. Is it possible to make it? Do you know how to correctly setup ConfigMap? How does Prometheus scraping metrics from isto?

Thank you for help or advise.