Most command does not take an argument, if you are unsure just leave the command args empty

Commands won't be sent to Visual Studio if it's running with admin rights unless you run Stream Deck with admin rights too.

You can use the action keys at any time whereas you are focusing on a Visual Studio instance or a debugging application started by that instance.

Use Command Explorer extension from Visual Studio Marketplace to get the commands name. e.g.: View.C#Interactive.