It would be nice to be able to use a container for an entire Windows job just as you can with Linux. Probably relates to Container based actions from Mac and Windows?.
Glad to see you in Github Community Forum!
Currently docker container/actions are only supported in Linux OS.
According to the policy, it’s recommended to raise a feature_request ticket in below link where github product manager will take a review, they will check if there’s any plan or timeline to share.
Done. It would be nice to keep these things public.