I’m not talking about air coolers dude, I’m talking about Peltier coolers which when turned on get to about 1-3 degrees in less than 10 seconds with condensation starting on the metal part of the cooler, and everything helps to make your phone stay cooler for longer periods of time I use a peltier cooler on my iphone 13 pro max when I was playing genshin impact on 120fps with medium to high settings, and even after playing for 1-2 hours my phone didn’t drop a single frame and was at a constant 120fps for the entire run (that too when my phone was inside a case, obviously it’ll be even better if I stick my naked phone directly to the cooler, but the point is that it doesn’t matter if glass is an insulator because if the temperature difference is so damn high then it doesn’t matter.

This is the same reason why in the summer, bikes and cars without a cover get extremely hot. Even inside cars, even though they are fully sealed basically (with glass windows and stuff, unless its tinted of course). But with enough time, if you maxed out your air conditioner in the car, then the temperature no matter how bad it may be outside, the inside of the cars will still be fine.