They are right though. Check between the barrel plate and the metal back plate. Model Ms use a trio of membranes to detect key strokes. It is part of why they sound so much deeper, more robust, and less pingy than model Fs. Model Ms are membrane keyboards and that is a good thing.
I’m apparently the archeologist over here with my Model M and its buckling springs.
That’s a membrane keyboard
lol no it’s not, could even take pics to show you
They are right though. Check between the barrel plate and the metal back plate. Model Ms use a trio of membranes to detect key strokes. It is part of why they sound so much deeper, more robust, and less pingy than model Fs. Model Ms are membrane keyboards and that is a good thing.