Do you have any information on their implementation? I only noticed that something was amiss once I connected a load balancer and my instances suddenly lost internet access. And also due to the limitation on how many load balancers you can have.

It seems that once you add a load balancer, all traffic gets funneled through it, doesn't matter if it was addressed to it or not. Which is unlike any other load balancer I have ever seen.

Coming from other clouds, this was a shock.

The only thing comparable is AWS's NLB. Because that load balancer is so transparent, clients appear to be connecting directly, with the original source ip. Which caused issues when I wanted to deploy my own Elasticsearch and use an internal NLB for master discovery (whenever a request got routed to the same machine packets got discarded by the kernel). But you can just switch to another load balancer then.