Does the effect of nasolabial fold filler remain even after a year? How long did the results actually last?

Lately, I’ve started to get self-conscious about how the lines around my mouth look slightly sunken even when I’m not smiling.

I didn't usually pay much attention to it, but when I took a photo, one side of my face looked particularly deep, making my face look tired.
Even when I try to cover it up with makeup, it actually causes creasing, so I am considering getting fillers.

However, when I looked up filler reviews, I saw some people saying they were satisfied at first but the effect wore off after a few months, while others said it lasted for over a year, so I became curious if the duration of the effect varies so much from person to person.

Rather than completely eliminating the nasolabial folds, I want to add just enough volume to make my face look less tired.
So, I am in a situation where I feel burdened by putting in too much, and I am not particularly keen on frequent retouching.

For those of you who have personally received nasolabial fold fillers, how many months did it actually take to feel the effects wearing off?

I am curious to know how your satisfaction changed from the first procedure to over time, and whether you would get fillers in the same area again if you were to do it again.