How long does a nasolabial fold filler procedure take?

As I get older, the nasolabial folds that appear when I smile aren't disappearing and have started to sink in deeply, making my face look tired, so I am stressed. Unlike wrinkles around the ears or eyes, the nasolabial folds feel sunken, so I heard that filling them in with fillers is the most effective solution, and I am looking into it.

People around me have been scaring me so much by saying that fillers can shift or clump if injected incorrectly, so I am carefully looking for a clinic that performs proper molding and fills the area naturally. Since I am a working professional, I need to make a quick stop during my lunch break or after work, so I am a little worried about coordinating the timing.

For those who have actually received filler injections in the nasolabial folds, could you tell me approximately how long the entire procedure takes, including the application of anesthetic cream and molding? I am also curious if there are needle marks or severe swelling immediately after the procedure!