I just noticed that the NetObserv installation and configuration procedure is wrong in versions 4.12, 4.13, and 4.14. The procedure recommends using the spec.loki.mode, spec.loki.lokistack.name fields: If I'm right, these fields are not supported by flows.netobserv.io/v1beta1 but they are part of flows.netobserv.io/v1beta2. So the console does not offer these fields in the form view!

1. Install network-observability-operator.v1.3.0
2. Try to select spec.loki.mode from the form view 
3. Try to select spec.loki.lokistack.name from the form view  

Fields do not exist

https://docs.redhat.com/en/documentation/openshift_container_platform/4.14/html/network_observability/installing-network-observability-operators#network-observability-operator-installation_network_observability