I wonder how they handle isolation. Linux container technologies don't normally provide sufficient isolation for multi-tenant environments, which is why most of

I wonder how they handle isolation. Linux container technologies don't normally provide sufficient isolation for multi-tenant environments, which is why most of the cloud container orchestrators require you to pre-provision VMs (ECS, GKE). Azure Container Instances uses Windows Hyper-V Isolation that boots a highly optimized VM per container, so containers have VM isolation. Has AWS built a highly optimized VM for running container?