Ensure the best practices for Envoy Edge configuration is used in the Gateway API config.

https://www.envoyproxy.io/docs/envoy/latest/configuration/best_practices/edge.html

• what is set/used today?
• what makes sense to use?
• which are possible to configure and how?
• which need istio enhancements to expose?
• can envoy for edge proxy be configured differently from envoy for sidecar/mesh?