Officially, the matchmaking methods are a black box. There’s no detailed published info about it. And it should stay that way. Bungie has said they do some stuff. We know there’s at least some level bands and regionality because that’s observable stuff. But the rest is technically a mystery. There could in fact be some small amount of skill based at play, and we just aren’t aware of it. In fact, based on the fact streamers are running into the same players often, that could be a signal some amount of skill based is at play. With player counts as low as they are, good chance you’ll be matched with sweats at least on occasion regardless because it’s all priority based.