No experience with the ones in the US. But I have plenty of experience with the ones in Canada. I'll list them all off.
-Winnipeg is absolutely full of natives. They are almost all involved in some kind of drug related gang activity. When I flew there, it was like stepping into Mexico as portrayed by Breaking Bad because the part of town I was in was just absolutely infested with natives. Graffiti everywhere, used needles and very obvious drug dealers all over. The stares I got were pretty menacing. I am the quintessential white man. So I stood out a lot among these people, and I clearly was not welcome. There was also a native gang shootout down the street from the hotel I was staying in one night.
-Labrador natives are legitimately some of the creepiest people I've ever encountered. Not because they practice some weird tribal rituals or anything. But because of their utter dependence on intoxicating substances. All the reserves in Labrador that I've seen are dry. Meaning alcohol is not allowed to be sold within them. They get around this in a few different ways. The smart ones make their own alcohol. But all the rest of them often drink mouthwash, rubbing alcohol, and other products, and the children would chip together some money, go to the gas station, fill up a plastic bag with gasoline, and then spend the day huffing it in the woods. But in some reserves, there is like a yearly summer pilgrimage to the nearest liquor store, which is usually 50km or more away. They will get to the liquor store, use their government benefits to buy alcohol all summer, and just camp out in the woods near the liquor store, and not return to their reserve until it starts to get cold. So for the entire summer and much of autumn, they're drunk 24/7 acting zombified in the woods.
-Newfoundland natives don't really exist. The actual native culture the Beothuk were mostly killed off by the vikings a thousand years ago, and those that remained just declined out of low birth rates until extinction after Europeans returned to the island. Some time after the Irish colonies were set up, a type of native from the mainland of Atlantic Canada migrated across the waters and set up shop on the West and South parts of the island. They are some of the lowest IQ people I've ever met, and I personally know three. One lives far off on a reserve, the other is his cousin I go to university with, and the third is a woman who is maybe 96% white and 4% native. So she's actually somewhat intelligent. But it's insane how much a tiny drop of native DNA can lower your IQ so much. This woman is so proud of her tiny amount of native ancestry, despite her people not being native to the island and arriving after the white man did. Anything to be special, I suppose.
-Alberta natives I only have experience with one. He is another university classmate. He's sponsored by his reserve to come over here, get his certification, work on a tanker, and be this big success story for his reserve so the government will give it more money. The reserve he lives on is directly next to another reserve. They used to be a single reserve, but the government had a highway built and it went through the reserve and kind of split it down the middle. One part on one side of the highway, and the other part on the other side. Unbelievably, this reserve, which used to be one big united extended family divided into two and started developing tribal conflicts with them. Because a fucking two lane highway divides them. He himself thinks it's incredibly stupid, but that never stopped him from participating in the nonsense.
-The Inuit are actually awesome. Yes they often live in shitty reserves on welfare. But a large number of them practice their traditional nomadic lifestyle, herding, whaling, and sealing. They're low IQ, but when it comes to arctic survival, subsistence, and ingenuity, they're legitimately some of the smartest people I've ever met. At least in their area of expertise. Their isolation and lack of intrusion into their culture also does something weird to their morale. Even though they often live in some of the furthest North inhospitable frozen hellscapes imaginable with almost no modern technology, they're very jolly. Living in tribes of under 500, working towards grounded and natural goals, being isolated from foreigners, and having close companionship with friends and family seems to be how humans were designed to live. Uncle Ted was onto something because the Inuit live how he wanted people to live. The mental health was very good. Not in the reserves, though. They were the exact same as the Labrador natives in the reserves.