Somehow in Norway where EVs make up more than 1/3 if entire vehicle stock on the road, it's not a problem. That's a seriously cold ass country.
https://weatherspark.com/h/y/68697/2023/Historical-Weather-d... https://weatherspark.com/h/y/68746/2023/Historical-Weather-d... show the daily highs didn’t get below 0°F in Oslo or Trondheim in 2023.
So, it’s colder in Chicago now than is typical in those cities. They are in the south of Norway, but that’s also where most Norwegians live.
Narvik is further north, and also didn’t have days below 0°F (https://weatherspark.com/h/y/82944/2023/Historical-Weather-d...)
In general, land climates beat sea climates in extreme temperatures.
Norway also benefits from the North Atlantic Current (https://en.wikipedia.org/wiki/North_Atlantic_Current)
What you would typically worry about here—unless you live in one of the frigid parts—is distance and if you have to drive over a mountain.
Teslas have their fair share of issues, but the real problem in Chicago is relatively few people have access to home charging compared to the number that own EV's. It's one reason Teslas are so popular, as every other EV is a pain to charge exclusively with public charging. Reduce their range with cold, increase their charge time with cold, increase the rate of usage with cold (as it's too cold to use bikes and walk for many people) and yes - you're going to run into supply shortages during extremes. To prevent that, you'd need oversupply in the bulk of the year, and the footprint of Chicago and real-estate cost simply doesn't support that.
Checking wikipedia quickly it looks like oslo and chicago have similar winter temperatures, so chicago's cold snap would be an outlier for most norwegians too.
Due to Earth's rotation affecting winds the western coasts of continents usually have much milder climate than the eastern coasts, most of Scandinavia has much milder climates than the same latitude on eastern North America.
Except for the northern parts of Fenno-Scandia most places here have a quite mild temperature range during winter (I'd guess the southern 70% of Fenno-Scandia will vary between -15C to 0C throughout winter).