Reports of lithium battery fires are limited to hoverboard and electric cycles. Some of these devices use very cheap and unsophisticated chargers. The batteries get overcharged and light up.
EV chargers are actually inside the car. These chargers are highly sophisticated, and ensure that the battery is charged correctly. It’s highly unlikely that an aEV on charge will catch fire.
EVs are most likely to have a battery fire when the battery is damaged, most likely due to a motor vehicle accident. But again the manufacturers encase the batteries to protect the batteries.
Unfortunately there is a lot of misinformation out there, as well as prejudice to EVs.