For best results, is a lifting procedure performed on the entire face?

Lately, when I take photos, the corners of my mouth and chin seem to sag particularly much.

It’s not that I’m concerned about my entire face, but when I look into lifting procedures, I find that many people opt for full-face treatments.

Is there a significant difference between focusing on problem areas and treating the entire face?

I would like to hear stories from those who have selected and received treatment only on the areas they need.