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I think it depends on what you are using the MacBook Pro for. Some issues seem to surface only if certain apps or workflow. Take a look at the article below.

 
I saw this video

He talks about various apps that may help with the fan problem. One was turbo boost switcher plus two others. I have been trying to decide between 16 and 13 mbp. The external monitor issue you experienced has me hesitant. The maxed out 13 would work for me but I really want 16.
 
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