Whattabout sailing from China to Europe across the Arctic north of Canaduh?
Canada has only 2 heavy and 4 medium breakers - all conventional powered, enough for their needs, but not enough to compete with Russia or even by class with their Project 22220 breakers - 5 heavies are nuclear powered (which make US [1 heavy] and Canadian breakers look like a kids toy) plus 5 more under construction, plus an operating nuclear powered Arctic supply ship.
Russia has too great a lead and too much experience to compete with at present.