A client told me my blowouts were too hot and it made me rethink my whole approach

I had a regular come in last month who said her hair felt fried after her usual style. She pointed out my dryer was on high heat the whole time, even for the last pass. I used to think that was just how you got volume that lasted. I switched to medium heat for the roots and cool air to set the ends. It adds maybe 3 minutes to my time, but her hair feels way better now. I'm curious, has anyone else had a client call them out on a heat habit they didn't even notice?