Both my M&P .40 full size, as well as my M&P compact has the sear lever
that you have to push down before releasing the slide. No pulling of the trigger is required on mine.
But, my compact's release lever will snack back if I don't hold it in position,
while I pull back on the slide to release. Doesn't bother me, just something to get used to doing when field stripping the compact.