Really interesting comparison! I’m just diving into this sort of thing myself and have found your channel to be very helpful and informative. I just did a little write-up of some silent switches myself - thought it looks like I might not have chosen the best housings. 
(Yok yok yok…) I knew housings made a difference, but these two videos here have helped me realize how much of a difference they really make - I’ll definitely be revisiting my quest for the quietest switch after seeing these!