In the https://docs.redhat.com/en/documentation/openshift_container_platform/4.20/html/nodes/overview-of-nodes 
remove kube-proxy from node description and diagram since OVN-K (as the only network plugin now) does not use kube-proxy


Also From CNO configuration object table:
https://docs.redhat.com/en/documentation/openshift_container_platform/4.19/html/networking_operators/cluster-network-operator#nw-operator-cr-cno-object_cluster-network-operator 

spec.kubeProxyConfig: The fields for this object specify the kube-proxy configuration. If you are using the OVN-Kubernetes cluster network plugin, the kube-proxy configuration has no effect.


we should remove this description since it is not necessary to expose this config anymore.

≥4.17 since 4.17 has totally removed OpenShiftSDN hence kube-proxy related description is no longer appropriate

easy, check product doc    

the kube-proxy doc is there    

the doc and diagram should be updated to remove kube-proxy