When a developer run PromQL in "Observe > Metrics" menu in developer view, then suggestions of metrics doesn't appear. Rather only name of PromQL functions appear. For eg: rate, irate, sum, count_over_time etc

4.19.z

100%

    1. Enable user workload monitoring
    2. Create a namespace and application. Create servicemonitor.
    3. Check if the target is up and metrics can be query in "observe > metrics" menu.
    4. Add a new user and create a rolebinding to allow user to view contents of the namespace.
    5. Login to cluster with this user and access developer console. Try to query the metric in "Observe > Metrics" and auto suggestions will not show any metrics.
    

For developers, auto suggest metrics doesn't work.

The auto suggest metrics should work for all the users who have view access to the project in developer view.    

If correct metric name is executed, then the output of the metrics is shown. 
Auto suggest works fine in Administrator View.
Auto suggest feature in developer view is working fine till RHOCP 4.16. Starting 4.17, it doesn't work.