Keeping Samsung mobile phone cool in car while making a Zoom call

I have a Samsung Galaxy Note20 and sometimes make personal Zoom calls to friends in my car as I live with roommates. I live in the Seattle area, so during the warmer months, it'll get anywhere from 70 to 85 or even 90 degrees Fahrenheit. Today, it's about 70 degrees outside today and I got a notification on my phone that it was overheating, even though I had my car windows open. I'm thinking I could put my cell phone in an insulated container, and then put that insulated container in a cooler with cold packs in it and use Bluetooth earphones for audio on a Zoom call. Would that work? Or does anybody else have ideas about how to keep my mobile phone cool in my car while making a Zoom call?