I was just watching a video on that. Around the 3:00 mark he shows the plunger getting rotated by the de cocker, and later shows the pin block raising only when the trigger is pulledOn the Beretta 92 it doesn’t just drop the hammer short of the firing pin, it actually rotates a connecting plunger so that the fitting pin cannot be hit.
View: https://youtu.be/0lQHex7Dres?si=LQp9_kesaZ0HLTMd