You'll be fine if you pick a quality EV that does proper battery temperature maintenance. I've been driving a Volt here in Ontario for years no issues. GM & Tesla have put proper engineering into this. Nissan has notoriously cut costs on battery cooling/heating in ways that have led to shortened battery life.
Is there a comparison somewhere of the cooling used by different EVs and PHEVs? I know tesla does it right but there is rarely enough information provided by manufacturers to tell if they can take the pack temp below ambient or not. It is by far my largest concern in selecting my next vehicle. I want to wait for the cyber truck, but I am vonsidering the pacifica PHEV
I've no idea what it actually does, but the manual and car settings for my Subaru say that when it has sufficient power it will auto-heat/cool the battery to prevent damage.
Others, your mileage may vary (literally)