I believe he lost brand deals as a result of his banning from Twitch since he was lumped in with a bunch of sexual abusers, so he either got a decent monetary settlement from Amazon because of that or Amazon absolutely demolished him in court and they offered him a way out if he just let everything go. Kind of hard to really say at this point.
My personal opinion is that I would never sign a NDA unless I was getting "fuck you" money, and I think most people would agree with me on that, so I hope that's what happened.