I have a MacBook Pro 13.3" 2019 (4 thunderbolt ports), an I have been concerned about overheating for a while. My processor is an Intel® Core™ i5-8279U. Graphics card is Intel® Iris® Plus Graphics 655. I regularly use Intel Power Gadget to keep an eye on temperatures and frequencies. I have found that the graphics card produces a lot of heat. I was playing certain games, but CS:GO, is especially stuffed up and doesn't allow me to change settings, so the resolution is too long vertically, and I can't turn down the graphics settings. Thus, running max GPU clock running max graphics settings is fun, however within a two minutes the package temperature sits between 90ºC and 100ºC and stays there, with the fan revving like crazy. I place a pen on the side of the laptop so that there is more airflow (1 mm at the lowest to 13 mm at the highest). I live in Australia, so room temperatures will often exceed 25ºC, but will never be more than 30ºC whilst I'm in the room because the A/C will go on. The maximum junction temperature for the processor, as stated by Intel is 100ºC. Whilst the GPU is is at max freq., the CPU is throttled down from usual frequencies, but when loading levels and stuff, the CPU will boost, and then the computer fan becomes louder than the ceiling fan and then I quit because Macs are expensive and I don't think like I am doing the right thing. Currently my PC is being used by other people in my household during coronavirus lockdown, so this would be no problem.
Are these high temperatures bad, and is there way to fix it? Due to the fact that it's so damn thin, I don't want to pull it apart myself, and I don't know any technicians who are keen to work on Apple devices. I've heard that all Mac internals are soldered together except the battery, so what about the fan? Will these extreme temperatures damage Li+ batteries, or other components?