Guard is 121.5 isn’t it?

Docker is a container platform. Docker Engine is the container host for Linux and Docker Desktop uses a virtual machine to run Docker Engine and containers in that VM.

For example, if you use Docker Desktop on Windows, Docker Desktop will run Docker Engine in a WSL2-based VM and then run containers inside that.

Yeah but Docker Desktop uses a VM, either in WSL2 or Hyper-V. Docker Engine on Linux doesn’t use a VM and that’s what’s typically used for hosting services.