[Macha]

Docker support is precisely the sort of feature that would have required significantly more work to support in WSL1 than WSL2.

[shawnz]

Yes, admittedly loop mounts and Docker were an easy add for WSL 2 and would have been significantly more complicated for WSL 1.

[pjmlp]

Docker can also make use of Windows containers, and that is probably easier when everything is running on top of Hyper-V, as type 1 hypervisor.

[peteri]

Docker works fine with WSL1, I don't think I can use WSL2 at work as we're waiting on the next LTS version of Windows.

[shawnz]

Docker can't be hosted on WSL1. You can use the Docker client on WSL1 to communicate with a Docker host running on WSL2 or Hyper-V, though (which is how Docker Desktop works)