My iphone 16 pro not get warm up when charging

Hello everyone, My iphone 16 pro get 18 charge times, i usually charge from ~35% to charge limit at 80% (sometime 90%). i notice that when put in charging, i touch the screen and the back it does not WARM UP AT ALL,I read on internet people claim that they have experience in heating issues when they charging. I use Anker 313 GaN 30W brick. So is it normal with my Phone?