The following diagram illustrates something interesting: just as we can place a backend service (for example, a group of VMs) behind a load balancer for dynamic content, we can also place backend buckets behind a load balancer. It would also make sense to use Google's Content Delivery Network (CDN) to cache the content in those buckets in front of the load balancer, but that is not actually shown in this diagram:
GCP also features content-based load balancing, where an HTTP(S) load balancer can be set ...
