It feels odd to create a new thread to answer a question, but I agree that the original thread had derailed.
I use the word “gaming” primarily for playing board games. I belong to a group of “gamers” who has had weekly game nights for more than three decades. We coordinate attendance by email, and we often use phrases like “I will be gaming at Joe's this week".
The other way I use the word is for exploiting details of a ruleset to get away with something, as in “gaming the system”.
I have never heard this word used for game development, and I think it would be confusing if used that way.