Raising this documentation bug, as an outcome of the parallel ACM-13598

• Specifically, the improvement concerns the "1.5.5.1. Setting up the Grafana developer instance" section, where the following is highlighted:

.. Select the Grafana URL, `https:grafana-dev-open-cluster-management-observability.
Unknown macro: {OPENSHIFT_INGRESS_DOMAIN}`, and log in.

 
That is:

• Without the prior login, the user switch is not expected to work (and thus triggering the issue highlighted in ACM-13598).
• Therefore, as an improvement, it was suggested to add an additional note, to particularly highlight the the user switch is not expected to work without prior login.