The screen can take damage from alcohol. Even if it drops from the motherboard
And if you are working on the SOC why would you apply in the LCD... the alcohol is to be used to clean the thermal compound nothing else... (also now for a few years on really super crappy thermal compound I have been using WD40 to remove spraying it into cotton, it removes the super dry gum thermal compound much better than alcohol, never had problems, my Xbox360 was always cleaned with WD40 since 2008 and its still working, same on my PS3)...
And even still It all depends, I had many devices who went to salt water and some the LCD was still like new while others the LCD still worked but kinda bad... Also I don't know how's the nintendo switch LCD as I havent taken apart, but most smartphones this days the LCD at least is usually waterproof because all the layers are completely glued on all corners so no water can enter it, even though the rest of the phone can be damaged or the LCD electronics unless the phone is waterproof...
Would love to see how ninty applied thermal paste on the new revision of the switch and lite.
Same here...
I can only give credits to Sony, because I opened up my PS4 Pro recently and it has around 3 years and the thermal paste in it was actually mostly liquid, its a HUGE upgrade from the PS3\360 era... However I was also ripped by Sony at the same time since my PS4 pro had random shutdown problems since day one, some times it appears "there's too many usb devices connected" without even having any usb cable connected then freezes and then shutdown, most online said it was a software problem so I just kept it...
Now after opening the console I see that I got a used repaired motherboard in a new shell because it was full of solder, something that looked like watermarks damage, solder all over the place, I wasted almost half a can of contact cleaner on the whole motherboard and fully brushed it, there was even very small loose solder balls in the motherboard, after doing that, for now the console hasnt shutdown a single time yet...
But I can't say either if the good quality thermal compound is also a standard on the PS4 Pro or if Sony simply used a better one than the factory when they repaired the motherboard, my PS4 Pro 1st revision have always been super quiet, it only spins up a bit for very little time and goes back to silent and I even have the back of it pointing my face, my friend PS4 Pro 1st revision for example is jumbo jet loud (but I know theres 2 different fans too and one louder than the other)...