The node description given in [1] seems to be copied from upstream Kubernetes and does not reflect the OpenShift specific configuration:

1- The section about the "Container runtime" refers to several runtimes when there is no choice in OpenShift and only CRI-O is supported.
2- There is a section about Kube-proxy (also shown on the picture below). However as far as I know kube-proxy is not deployed on OpenShift.
3- The picture shows a "Cloud connector" between Kubelet and some "external" cloud. However there is no description of what such Cloud connector represents.


[1] https://docs.redhat.com/en/documentation/openshift_container_platform/4.18/html/nodes/overview-of-nodes#nodes-overview