I think WoW has something for almost everyone. I spent my first 3 expansions focused on end game and always with a guild, always on vent, or discord, very social. With pugs on top of that.
Then near the end of MoP I took a break and only came back for solo casual play from time to time from that point on. Still enjoy the game just as much, my only disappointment is the cross this and shard that vibe of WoW now vs the community that severs used to have. But as I don’t do the guild/pug thing anymore it’s no big issue for me, just sad for the game.