I use the phrase “First Nations” as rightly or wrongly, it is the phrase generally utilized to refer to indigenous people in Canada.
Your comment about unconnected bands is ignorant. I suggest you do some research about how tribes and bands interacted at a regional level. If you don’t want to slog through Native American ethnography, I suggest Ambrose’s “Undaunted Courage” which discusses tribe and band connectedness, especially in the Pacific Northwest, where the Corps of Discovery wintered over at Fort Clatsop in 1805-06.
My point was, the settlers from Siberia are no more “indigenous” that the sixth and seventh generations of settlers from France and the British Isles, and that the country of “Canada” is not the creation of the former groups of settlers at all, it is a purely European creation.
“Native Americans” has the same problem, the settlers from Siberia were never “native” to a place called “America” until Europeans created it.