We are looking at deploying Kubernetes on GCP as a managed service (GKS) - will we have to deal with networking issues in production, or is this something abstr

We are looking at deploying Kubernetes on GCP as a managed service (GKS) - will we have to deal with networking issues in production, or is this something abstracted away by the managed service? I know that ELBs for external traffic ingress are automatically managed by GCP, but not sure what other things we need to consider.