I would like to inquire about a double chin lift.

I am very concerned about my double chin and would like to inquire about a consultation regarding a lifting procedure.
Even though I am not overweight, my biggest concern is that the skin under my chin looks saggy and my double chin is prominent, making my facial contours look dull.
I am stressed because my jawline is not distinct when taking photos or looking at my profile, so I am considering a lifting procedure.
I looked it up online and found various lifting procedures such as Ulthera, Shurink, InMode, and Oligio. I am wondering which procedure would be most suitable for my case.
I heard that the recommended procedure differs depending on whether it is simply a case of excess fat or sagging due to loss of skin elasticity.
I would also like to know if I can receive an accurate diagnosis through counseling.
I am also curious about how many treatment sessions are usually required to improve a double chin, when the effects appear, and how long they last.
Please also provide information on the level of pain during the procedure, whether anesthesia is required, post-procedure swelling or bruising, and the recovery period until returning to daily life.