Question about laser facial hair removal

I’m a 24 year old male and would like to get all the hair permanently removed from my beard/mustache and neck area so I don’t gotta spend so much time shaving every day and even when I do shave it doesn’t all go away I can always still see some stubble shadow which I don’t like and am insecure about and would feel much more confident about myself if it wasn’t there anymore and I don’t wanna hear any bullcrap about how I should keep my facial hair I don’t fcking like it, I like how I look without any hair on my face or neck go fck yourself get over it and no I’m not gay or transgender either I just think I look much better and feel much better without hair on my face

My question is; assuming it takes a few laser treatments to finish the process of the hair removal, am I not gonna ever need to shave again after the first treatment? Or does the hair only stop growing after the last treatment? I am going to get it done at Milan because it looks like they have the best reviews and highest quality equipment