Docker Desktop on macOS uses a HyperKit or QEMU VM. On Windows, it requires WSL2 or Hyper-V. Both add a virtualization layer that increases memory usage, slows file I/O (especially bind mounts), and introduces networking quirks. On a Linux VPS, Docker talks directly to the kernel - containers start in milliseconds, bind mounts are zero-overhead, and networking is straightforward.
A VPS also gives your containers a public IP address, proper DNS resolution, and real network interfaces. Deploying a containerized web application is as simple as running docker compose up and pointing your domain's A record at the VPS IP. No port forwarding through NAT, no tunnel services, no load balancer configuration.
AnubizHost VPS plans run on KVM virtualization with nested virtualization support, so Docker-in-Docker (DinD) works correctly for CI/CD pipelines that build container images inside containers.