No, Steam games do not have DRM by default. By default Steam is a mere download manager. For Steam DRM to be applied, the publisher has to run the drm_wrap command: partner.steamgames.com/doc/features/drm

Feel free to use SteamCMD: developer.valvesoftware.com/wiki/SteamCMD

Where do you get those lies from? I’d kinda get it if Steam’s documentation for publishers was behind a NDA wall but it’s public.