Hard to tell if Conor threw the first punch honestly. After Khabib climbs the cage, Conor goes to climb the cage too but has a Khabib team member right next to him.
https://twitter.com/user/status/1048808154111336448
Best video I've seen that captures it all from the start.
Have zero interest in seeing Conor fight Khabib again. Khabib vs Ferguson makes the most sense, both have 11-fight win streaks in the most stacked division and Ferg was the interim champ anyways.