ZQ and the 5guys saga was the straw that broke the camel's back, but it was overall unimportant. The wikipedia page for GG is notoriously worthless, as it's constantly in a revision war between the two sides (to point: anytime something is changed, on either the gg or agg reddits, there's always 2-3 threads addressing the change). Essentially, while Depression Quest was never given positive ~reviews~, it was mentioned in articles that had almost nothing to do with it. IIRC, it also got awards and namedrops in other places that it absolutely did not merit, and ZQ was pushed as a "game dev" left and right despite making a CYOA series of html pages with an insane person's rendition of what depression is like. The post essentially revealed the incestuous network that people had suspected existed, but from that point on ZQ became a peripheral concern of the GG thing. Some people obsessed over her, true, but there was a reason she's one of the Literally Whos. Some of the minor sagas that ZQ got involved in that did mobilize people against her, though, were !) the Wizardchan debacle: she essentially went after a forum of people who were actually depressed because they found her 'game' insulting and childish; 2) the Fine Young Capitalists saga where she tried to shut down the funding and blacklist a massive fundraiser gamejam project, itself intended to get ->more<- women involved in the creative process of amateur game devving--all because they accepted money from people who were pro-GG; and 3) the Gjoni lawsuit, wherein she basically jammed a restraining order against Gjoni on trumped up sexual assault/abuse charges with her parents' money (she comes from enough dough to afford a team of $700/hr lawyers that normally represent international corporations)... and then, when he was filing appeals, tried to have the whole thing thrown out so she wouldn't be liable for lying to the court (or, at the very least, slander and libel). There have been other things, like her and Sarkeesian popping up at all sorts of trendy tech companies and the United Nations to whine about how someone called them fat on the internet once, but those three were the main things that incensed people against her. But, again, she really isn't that important to the shitstorm after the first few days even.
As to the timeline, it's essentially the Gjoni and her go back and forth for a while, she rings him around, makes him want to kill himself (his testimony, anyway, though he isn't the first to suggest something like that regarding her), and when he finally breaks away and airs out the dirty laundry, many of the accusations are indirect (Grayson was one of I think 2 named out) and moreso suggesting that 'these conflicts of interest should have been revealed, and she's getting more coverage/attention for the game than it at all merits.' Both her and the other LWs have claimed harassment a gorillion times, but have yet to show a shred of evidence or even a police report, iirc. At one point, she even claimed she had to 'leave her home because she was so afraid' when in reality she was just on holiday in Europe. While I don't doubt that she got a good bit of harassment from trolls, she has herself a nasty tendency to try to get people to kill themselves and pull together rings of people to harass people out of the indie/reviewing industry.
Moreso, people started to prune through the network of contacts that the post suggested, and found all sorts of ties and connections between the gaming press, review ceremonies, and indie developers. Preferential treatment in awards, contests, and festivals, PR campaigns that simultaneously consult an indie developer and its reviewers/judges, all that stuff. To smokescreen the lid being blown off of their actions, they rolled out the 'gamers r sexist!' thing and essentially made a campaign of suggesting that video games couldn't possible be art because there wasn't one about a black transsexual whirling nonbinary demisxual dervish queen, all while pushing awful garbage devs and games. The "Gamers are Dead" debacle involved a gorillion outlets, all from different publishers, shooting out the exact same article within 2-3 days as if no one would notice. Essentially, GG was 'resolved' when many websites said they would update old articles with conflicts of interest notifications and 'be stricter going forward.' Whether or not one sides with GG, generally no one even bothers to look at gaming journalism shit anymore because youtube exists and has proven itself more trustworthy. (And competent--if anyone remembers the infamous 'Polygon plays DOOM' video.) These incestuous devs and reviewers have been slowly dying off, along with the garbage clickbait journalism that provided for their worthless asses to live in ritzy neighborhoods and blow tons of money while writing about how they don't actually like playing video games.
GG's main downfall in all this was simply... caring too much. Spending the time reading about shit as much as I could, I found myself wondering how this shit had stretched out over a year, much less carried on in effect until Gawker's death. Most of the events happened over the course of a few months to half a year or so, and their resolutions came pretty quickly. The only people really affected by it were the ones working in the industry that had to keep their hands down, and the GGers who were assaulted to streams of threats that they actually had proof of. (As opposed to Wu, who showed her mastercraft in storytelling by making up innumerous stories she couldn't keep straight.) Eventually when the opportunists rolled into politicize it, many GGers ~already~ had too high of an opinion of themselves and got strung along by idiot after idiot.