While the entire mesh respects the same APIs and config, apps may target different 'environments' which contain different instances and variants of Istio. - Better security: separate Istio components reside in different namespaces, allowing different teams or roles to manage different parts of Istio. For example, a security team would maintain the root CA and policy, a telemetry team may only have access to Prometheus, and a different team may maintain the control plane components (which are highly security...