Is it common for Shurink to start from below the chin rather than the facial contour?

I am more concerned about the area under my chin looking a bit puffy than the overall sagging of my face.

In such cases, rather than treating the entire face
I am wondering if there are cases where the procedure is performed first, focusing on the area under the chin or the jawline.

Those who have actually received treatment on specific areas
I would also like to know if there was a difference in satisfaction compared to when the whole face was treated.