What is the recommended number of laser hair removal sessions for the philtrum and underarms?

As the weather gets warmer, I'm starting to get really bothered by the fur I've neglected for so long hahahaha;;;;;

Shaving at home with tweezers has its limits, and it seems to just cause my skin to darken, so I’m thinking of taking this opportunity to get a clean laser hair removal treatment at a dermatology clinic!!

I am focusing on my philtrum and underarms. Approximately how many laser hair removal sessions are generally recommended to achieve a completely smooth finish with no hair growing back? I know it varies depending on individual hair volume and thickness, but I’ve heard that the standard 5 sessions are woefully insufficient. For those of you who have consistently used equipment like the Apogee Plus, please share some firsthand information regarding the recommended number of sessions to achieve a clean look and whether the pain is tolerable. I want to switch from waxing to visiting a dermatologist!