Is InMode the most effective procedure for losing fat under the chin and a double chin?

I have gained some weight recently, but I have particularly heavy fat accumulated under my chin like a bulldog, so my face looks very blunt when viewed from the front.
Taking photos is stressful and looking in the mirror is so depressing because of this annoying double chin where my jaw folds in two even when I lower my head just a little.
I don't think simple contouring injections will be enough to get rid of this stubborn fat, so I am searching the internet diligently to find a powerful dermatological device treatment.
Everyone was praising and recommending the InMode FX mode, saying it is the most effective way to get rid of a double chin because it completely destroys fat cells with high-frequency heat.
However, I was suddenly scared after seeing reviews saying that severe bruising occurs immediately after the procedure due to the strong vacuum pressure that sucks the skin.
I have thin skin where bruises last for over two weeks, so I think I would be really embarrassed to go to work if I were left with bright red marks on my neck or jawline.
For any Maypure members who have received InMode treatment for a double chin, I am very curious to know how many days the bruising or swelling actually lasts.
And I really want to hear real reviews on whether there is a definite lifting effect that brings out a sharp, hidden V-line jawline, worth the bruising and pain.
If there is another ultrasound lifting procedure other than InMode that is less painful yet highly effective for losing double chin fat, please be sure to recommend that as well.
I am eagerly awaiting warm advice and helpful tips from experienced members in the comments so that I can regain my beautiful face shape.