I don’t play it multiplayer, but normally, my understanding is that if you’re on a team and enter an instanced area together, you see the “team leader’s view” of instanced areas. You can do quests co-op, though it’ll only advance that one player’s “view” of the world. Were you guys maybe not on a team? Or maybe you tested it by seeing if a non-leader’s view of the world had advanced?
I don’t play it multiplayer, but normally, my understanding is that if you’re on a team and enter an instanced area together, you see the “team leader’s view” of instanced areas. You can do quests co-op, though it’ll only advance that one player’s “view” of the world. Were you guys maybe not on a team? Or maybe you tested it by seeing if a non-leader’s view of the world had advanced?
https://www.reddit.com/r/fo76/comments/omf02s/how_to_do_instanced_quests_together_with_teammate/