$ oc get nodes
NAME                          STATUS   ROLES                  AGE   VERSION
ostest-kncvv-master-0         Ready    control-plane,master   9h    v1.25.4+86bd4ff
ostest-kncvv-master-1         Ready    control-plane,master   9h    v1.25.4+86bd4ff
ostest-kncvv-master-2         Ready    control-plane,master   9h    v1.25.4+86bd4ff
ostest-kncvv-worker-0-qxr5g   Ready    worker                 8h    v1.25.4+86bd4ff
ostest-kncvv-worker-1-bmvvv   Ready    worker                 8h    v1.25.4+86bd4ff
ostest-kncvv-worker-2-pbgww   Ready    worker                 8h    v1.25.4+86bd4ff
$ oc get node ostest-kncvv-worker-0-qxr5g -o json | jq -r '.metadata.annotations' 
{
  "alpha.kubernetes.io/provided-node-ip": "10.196.2.156",
  "cloud.network.openshift.io/egress-ipconfig": "null",
  "csi.volume.kubernetes.io/nodeid": "{\"cinder.csi.openstack.org\":\"8327aef0-c6a7-4bf6-8f8f-d25c9abd9bce\",\"manila.csi.openstack.org\":\"ostest-kncvv-worker-0-qxr5g\"}",
  "k8s.ovn.org/host-addresses": "[\"10.196.2.156\",\"172.17.5.154\"]",
  "k8s.ovn.org/l3-gateway-config": "{\"default\":{\"mode\":\"shared\",\"interface-id\":\"br-ex_ostest-kncvv-worker-0-qxr5g\",\"mac-address\":\"fa:16:3e:7e:b5:70\",\"ip-addresses\":[\"10.196.2.156/16\"],\"ip-address\":\"10.196.2.156/16\",\"next-hops\":[\"10.196.0.1\"],\"next-hop\":\"10.196.0.1\",\"node-port-enable\":\"true\",\"vlan-id\":\"0\"}}",
  "k8s.ovn.org/node-chassis-id": "fd777b73-aa64-4fa5-b0b1-70c3bebc2ac6",
  "k8s.ovn.org/node-gateway-router-lrp-ifaddr": "{\"ipv4\":\"100.64.0.6/16\"}",
  "k8s.ovn.org/node-mgmt-port-mac-address": "42:e8:4f:42:9f:7d",
  "k8s.ovn.org/node-primary-ifaddr": "{\"ipv4\":\"10.196.2.156/16\"}",
  "k8s.ovn.org/node-subnets": "{\"default\":\"10.128.2.0/23\"}",
  "machine.openshift.io/machine": "openshift-machine-api/ostest-kncvv-worker-0-qxr5g",
  "machineconfiguration.openshift.io/controlPlaneTopology": "HighlyAvailable",
  "machineconfiguration.openshift.io/currentConfig": "rendered-worker-31323caf2b510e5b81179bb8ec9c150f",
  "machineconfiguration.openshift.io/desiredConfig": "rendered-worker-31323caf2b510e5b81179bb8ec9c150f",
  "machineconfiguration.openshift.io/desiredDrain": "uncordon-rendered-worker-31323caf2b510e5b81179bb8ec9c150f",
  "machineconfiguration.openshift.io/lastAppliedDrain": "uncordon-rendered-worker-31323caf2b510e5b81179bb8ec9c150f",
  "machineconfiguration.openshift.io/reason": "",
  "machineconfiguration.openshift.io/state": "Done",
  "volumes.kubernetes.io/controller-managed-attach-detach": "true"
}

$ oc logs -n openshift-cloud-network-config-controller          cloud-network-config-controller-5fcdb6fcff-6sddj | grep egress
I1212 00:34:14.498298       1 node_controller.go:146] Setting annotation: 'cloud.network.openshift.io/egress-ipconfig: null' on node: ostest-kncvv-worker-2-pbgww
I1212 00:34:15.777129       1 node_controller.go:146] Setting annotation: 'cloud.network.openshift.io/egress-ipconfig: null' on node: ostest-kncvv-worker-0-qxr5g
I1212 00:38:13.115115       1 node_controller.go:146] Setting annotation: 'cloud.network.openshift.io/egress-ipconfig: null' on node: ostest-kncvv-worker-1-bmvvv
I1212 01:58:54.414916       1 node_controller.go:146] Setting annotation: 'cloud.network.openshift.io/egress-ipconfig: null' on node: ostest-kncvv-worker-0-drd5l
I1212 02:01:03.312655       1 node_controller.go:146] Setting annotation: 'cloud.network.openshift.io/egress-ipconfig: null' on node: ostest-kncvv-worker-1-h976w
I1212 02:04:11.656408       1 node_controller.go:146] Setting annotation: 'cloud.network.openshift.io/egress-ipconfig: null' on node: ostest-kncvv-worker-2-zxwrv

RHOS-16.1-RHEL-8-20221206.n.1
4.12.0-0.nightly-2022-12-09-063749

Always

1. Run AZ job on D/S CI (Openshift on Openstack QE CI)
2. Run conformance/serial tests

conformance/serial TCs are failing because it is not finding the egressIP annotation on the workers

Tests passing

Links provided on private comment.