High Sierra's External Display bug heats Macbook's, damaged my Retina Screen, what can I do?
The “stadium lighting” you show is usually a backlight issue where the voltage or lamps are not to spec. 

It’s highly unlikely that a thermal situation would cause that, but I don’t want to say there’s no chance or you’re wrong unless I could examine the whole Mac.

100C on many internal parts is just fine, so your reported ranges don’t seem at all out of line - especially on 2016 and newer MacBook Pro.