Except for the Nissan Leaf, most EV car batteries do great at managing heat even in adverse conditions (high heat, fast charging, etc).

I have a 5 year old EV which is always charged to 100% and it’s lost maybe 5% of its range capacity so far. Perhaps it was over provisioned (undersold the actual capacity) but it’s unlikely as it’s a cheap compliance car (that I still love to drive).