1sec pause after every rep?

Lets use a normal deadlift for example: should i drop the weight all the way down on the floor, take a quick breath and then lift it again or should i stop just before the weights touch the floor and go back up?

Same question for basically all the other exercises... even on a squat or bench press you could technically pause for a sec by locking out your knees/elbows.

Does it depend on the exercise or do you have the same opinion for all exercises?