Yep, I've also seen several corporates deploying Windows containers to production. As more "traditional" windows focused companies move to containerization/cloud, there's an increasing use of Windows containers, either as part of a Lift & Shift effort to migrate workloads, or because their developers are more comfortable with Windows and so they target that platform.
I tried to make one with VS build tools a couple years ago. It’s probably not too bad to do by now, but MS licensing is a massive drawback IMO. I’d rather focus on tech than reading license agreements that could be changed on a whim.
Linux and windows:
https://hub.docker.com/_/microsoft-windows