Hey Myron, my name is Zach, and i'm an independent advisor. I can definitely understand why that's annoying, since it's always been an easy go-to command for getting your activation key. Unfortunately, the "wmic path softwarelicensingservice get oa3xoriginalproductkey" command only works with an OEM key on newer versions of Windows. After that activation, it's tied to the Microsoft account with a digital license.
You can try using ' slmgr /dlv ' in CMD to see if it produces helpful results, it gets activation ID's to at least show a partial ID. Other than those commands, there aren't any other key retrieval tools inside the default Windows 10 suite of tools. If you have any further questions or concerns, i'll be here to answer them! Definitely let me know if that command revealed any new info.