The first item is an opinion piece from the very credible Xennial-in-Chief writing for brokeassstuart.com with no relevant facts.

The second is about one person who is literally the only connection IdentifyEvropa found between the two groups. And what was that connection? He tweeted a few tweets about it.

https://identifyevropa.org/tag/gamergate/

The lack of substantial links only provides evidence that there is no real connection.