GrapheneOS is finally ready to break free from Pixels, and it may never look back
(www.androidauthority.com)
That’s exactly my understanding/ thought process as well. I was wondering the same in terms of why an OEM would cooperate, and my first thought was the increase in hardware sales. I’m not sure how big the market is, but I know the security crowd will flock to them if they’re partnering with GOS when that market share would have previously been Googles. I’m not sure how big that market is or if the 'juice would be worth the squeeze'.