I know these men. I've had one as a roommate previously and another currently as a roommate lol
First one used to use a minimum of 10 sprays and up to 20. I remember counting 15 once, he stopped and then added a couple more for good luck lol
Current one also uses around 10-15 sprays every time.
Best part is that I have an extremely sensitive nose to perfumes and colognes, which makes it very difficult for me to breathe for about a minute if it's very strong and some scents can tighten my throat and make it a lot worse lol (could be an allergy, not sure)