Inaccurate SECURITY WARNING during Windows 10 Docker install CLI tutorial?

SECURITY WARNING: You are building a Docker image from Windows against a non-Windows Docker host.

I can’t tell if Docker is misreading the host/client operating system, or the warning is the result of some odd situation from the CLI being in the install window, or if the warning is inaccurate.

I’m using Windows 10 Pro. I downloaded and installed the latest Docker for Desktop today. I rebooted and got this cool wizard walkthrough. Now I’m not understand the warning, because my Windows computer (the host?) is not a non-Windows Docker host.

Maybe I’m misunderstanding what it means by “a non-Windows Docker host”… I thought the host was my computer, and the client was the Docker instance of whatever it is I’m trying to emulate.