I have never heard a single person irl say "Gamergate." Not even when it was a "big deal." I mentioned it a couple times to people who literally called themselves "gamers" and were fairly right wing (because an SJW would just go into a blithering shit fit if they had heard of it), and while it was just a couple times to maybe half a dozen people, nobody had heard of it (or they possibly knew to keep their spaghetti in their pockets).
Even at its "biggest" it wasn't that big. Of the relatively few normies who had heard of it, it was probably one story that confused them by some lunatic like Ben Collins. But a lot of those obsessos, who were ranting about it then, continue to do so until this day, while most people who would have associated with it at the time have moved on, often to other shit like Sweet Baby, but you don't hear "Gamergate" from them.