Would Ondari Lifting be effective for double chin and contouring?

Hello! Lately, my facial contours seem to be sagging noticeably, and I'm worried about my double chin, so I'm looking into cosmetic procedures. I've seen on Instagram and online forums that Ondari Lifting is being recommended a lot these days.

I am a very timid person, so I cannot undergo procedures that are severely painful. However, I became interested because I heard that this procedure is almost painless and allows for immediate return to daily life. I am wondering if I would see significant results in refining my facial lines or improving skin elasticity if I received the Ondari Lifting procedure given my facial condition.

Also, since I have an important appointment next month, I would like to know when the effects of the Ondari Lifting procedure usually become noticeable. It would be a great help when scheduling an appointment if you could also let me know the recommended treatment cycle and duration of the results!