It's fishy indeed: https://thegrayzone.com/2021/10/21/facebook-whistleblower-fr...
It's easy, all you need to do is spot the term "Russiagate", in this case the "gate" is being used to suggest that Russian influence in American politics is a fake news story (which it definitely isn't, see Muller report)
It basically talks about how Sussman's work on the Alfa Bank story (about how there was a relationship between Trump and a Russian Bank) was accused of fabrication and was lead by the Clinton campaign, as described by research from the FBI. (You can read the judicial document in its original form here: https://www.justice.gov/sco/press-release/file/1433511/downl...) Although the title is quite polemical and should have been toned down if it were to adhere to HN standards, I think it is a valuable news story and shouldn't be shrugged off as just "fake news".