Questions regarding double chin treatment

There are so many types of double chin procedures; which one would be the best?
I haven't been able to lose the fat under my chin despite dieting, so I am considering getting a double chin treatment. Since there are so many different methods available, such as injection therapies like InMode or V-Ole, I'm not sure which one is right for my situation. Which double chin procedure had the highest satisfaction rate for addressing both sagging skin and fat simultaneously? I am also worried that pain or bruising might interfere with my daily life. If anyone has personally undergone a double chin treatment, please advise on what to consider when deciding on the procedure and how long the results will last.