There are also cheap ($200-$400 range) usb-c thermal cameras specifically for phone use (they're cheap because they're just a sensor, the app on the phone is th

There are also cheap ($200-$400 range) usb-c thermal cameras specifically for phone use (they're cheap because they're just a sensor, the app on the phone is the "screen" and controls.) Great for narrowing down overheating hardware, and you can keep one in a pocket.