Yes, that is true. However, 95% of the population live within a a couple hundred miles of the US border.
Most of the population is in Toronto, Montreal, Vancouver, Edmonton and Calgary.
Nobody lives in the NW territories, Yukon, northern ONT, Quebec, and BC.
16% of the population of Canada lives in Toronto(6 out of 38 million). Over a third lives in Ontario.
If you wanted to live remotely and off the grid, Canada would seem to be ideal, except for being able to adequately protect yourself....aka no 2A....
Think of the USA with only 38 million people how much more isolated you could be if that’s what you wanted....