Edit the cluster Ingress configuration:

oc edit ingress.config.openshift.io cluster

Set the custom hostname and optionally the serving certificate and key:

apiVersion: config.openshift.io/v1
kind: Ingress
metadata:
  name: cluster
spec:
  componentRoutes:
    - name: console
      namespace: openshift-console
      hostname: <custom_hostname> 
      servingCertKeyPairSecret:
        name: <secret_name> 

Or Apply new Ingress Config

apiVersion: config.openshift.io/v1
kind: Ingress
metadata:
  name: cluster
spec:
  componentRoutes:
    - name: console
      namespace: openshift-console
      hostname: OpenShift.Meaty.Cloud
      servingCertKeyPairSecret:
        name: custom-console-certificate

Example YAML file

apiVersion: config.openshift.io/v1
kind: Ingress
metadata:
  name: cluster

spec:
  componentRoutes:
  - hostname: console.apps.oscp.abc.local
    name: console
    namespace: openshift-console
  domain: apps.oscp.abc.local
  loadBalancer:
    platform:
      type: ""
status:
  componentRoutes:
  - conditions:

    - lastTransitionTime: "2024-03-15T11:24:42Z"
      message: All is well
      reason: AsExpected
      status: "False"
      type: Degraded

https://meatybytes.io/posts/openshift/ocp-features/security/tls/customizing-console

https://docs.openshift.com/container-platform/4.15/web_console/customizing-the-web-console.html#customizing-the-web-console-url_customizing-web-console