> I use those keys. Without looking down.Unless you slide your finger across the keyboard to "count" which FN key is under your finger, you can still use FN keys on the Touch Bar, without looking down; they are in the same positions.
The Touch Bar is always within your peripheral vision when you're looking at the screen anyway [1] [2].
> Let's say I build my systems according to the advice on silentpcreview.com. Apple laptops on full load may be quiet for a laptop, but they have nothing on a custom built desktop.
Well if you're willing to record/measure the noise of your current machine under your usual workload, I could try running the same tasks on my 15" 2016 MBP to compare.
Mind you though, a desktop chassis is usually far away from you, unlike any laptop right under your hands, unless you use it with an external keyboard. So objective noise vs. perceived noise will be different, and have to be compensated for.
[1] http://i.imgur.com/En02SKA.jpg
[2] http://i.imgur.com/DIN2fCE.jpg