It'd be a long spiel to try to get it all done. Milo is actually writing a book about it. Of course, the mainstream media has covered it, but exceedingly poorly because they are sympathetic to the narrative that it's a hate movement which rests on the fact that they love victimhood plus the fact that the butt of gamergate has been the media or at least the games journalism subset of it in which many of the themes are the same.
Basically, the liberal press is very cliquey and in bed with one another in games journalism just as with the mainstream media (and colluding to craft narratives and advance agendas), and is also especially chummy with the games industry that they cover, or at least those they deem worthy. Very little in the way of consumer protection or advocacy is broached by them. It's more just about agenda-pushing by millennial SJWs that make up a bulk of the games journalism industry ("diversity" in games, demonizing games and the player base as misogynistic, racist, pathetic "shitlords," trying to shame developers for making games they don't feel conform to their ideological principles, etc.) and just making an easy buck preaching to gamers while actually holding them in contempt.
Of course, the genesis of gamergate doesn't help much. Even though all the sentiments and groundwork was already laid for years, the incident that sparked the whole consumer revolt that was later termed "gamergate" was some special snowflake "game developer" who had never made a successful game (or anything that much qualified as a game at all) and is an exceedingly shitty person in every way conceivable who was sleeping with a bunch of games journalists and having them give her positive press coverage at the same time. Her boyfriend at the time wrote a lengthy post to 4chan about it which caught fire, becoming a topic of discussion and investigation across multiple internet forums due to the collusive nature of the situation. Of course that made it very easy for the media to frame it as a jilted lover exacting revenge with the help of internet trolls who are just lonely losers that hate women and want to keep women out of fields they don't belong, etc, etc (basically the feminist narrative for all of STEM). And it also made many places such as reddit and eventually 4chan itself ban all discussion on the topic which only fueled the fires all the more.
This was back in 2014 I believe and it raged for years and is still out there as a movement, I'd say, and has evolved over the intermittent time. Lots of controversy within the movement itself has been had between various internal factions with whether just ethics or ideology as well belonged in the movement, or even whether it could be called a "movement" at all and the acceptable means of waging a war on corrupt journalists. They attacked the hell out of various organizations including Gawker, helping to cost them advertising dollars, etc. Later, certain elements brought together by gamergate banded together to fight meme wars and get Trump elected, at least in their own minds. ;p