https://www.envoyproxy.io/learn/front-proxy https://www.envoyproxy.io/learn/front-proxy outlines the use case for an Envoy proxy being a general purpose ingress

https://www.envoyproxy.io/learn/front-proxy https://www.envoyproxy.io/learn/front-proxy outlines the use case for an Envoy proxy being a general purpose ingress, with added routing and observability features. Honestly I can't speak competently to what Nginx and Nginx Plus/Pro are capable of these days, especially in relation to the sidecar proxy paradigm, but I know its much more than I've ever used in practice.