The Loki team added the option to configure which groups are to be considered as admin groups, so they might not have to create a new group if they already have one with a different name. This is documented here: https://docs.openshift.com/container-platform/4.14/logging/log_storage/cluster-logging-loki.html#custom-admin-group-access. The NetObserv docs should add a link/mention to this information.