Change the question you've already asked as you mentioned
Make a new question that focuses entirely on Steam and cite CS:GO or other games as an example
I would be fine with either one of these options you select. I noticed that you posted your own answer to your post in question. If you edit the post, make sure you update that answer as well (if needed).
I would suggest editing your question and (if needed) the answer, if the answer already (or almost) answers the expanded question or if there isn't an answer yet,
and asking a new question if the answer only fits the more narrow scope and doesn't fully apply to the expanded question.