Under "About", we should include a section that orients users who are familiar with community Istio to OSSM. This page answers the question, how does OSSM differ from Istio? 

Potential topics:

• OpenShift Service Mesh operator (Sail operator) for installation and lifecycle management of the Istio control plane, Istio CNI resource, side car or ZTunnel data planes
• OpenSSL rather than boringSSL for encryption for FIPS
• Longer Support lifecycle (we won't want to state a particular lifecycle in the docs, though we could link to the operator lifecycle page.
• Support for the Kiali console and OpenShift Service Mesh Console Plugin
• Supported integrations across the OpenShift platform (If we are allowed to link to other OCP docs pages, we could add links), including:
  • Openshift user-workload monitoring
  • OpenShift Distributed tracing
  • cert-manager
  • OpenShift Virtualization
  • OpenShift GitOps
  • OpenShift Serverless
• See Feature support table for details of specific feature support

This issue does not include how to migrate from upstream Istio, nor does it include details on supported/unsupported features support. Those will be covered by separate pages/issues.