Amazing. I was aware of the low-profile ones, but not these!
If I’m reading that page correctly, the entire switch is a total of 3.5mm. That’s great because
Fitting keycaps and PCB in 0.3mm obviously isn’t happening, but perhaps the switch can sit slightly in the PCB. (And there might be a smidge of extra space between the keys and screen?)
Edit: oh, but you may have to make a new input cover, too, if the switches don’t fit inside the holes.