During the Dragonflight 10.1 Embers of Neltharion questline, you could complete two separate questlines focused on Alexstrasza, and Kalecgos.
For Alexstrasza, we delved into the Rebel Dragonkin dissidents and listened to their grievances. Eventually, Alexstrasza acknowledged their concerns and folded those willing to rejoin back into the Red Dragonflight with the promise of new changes.