I trusted the doctor, who had a lot of surgical experience at a reasonable price range, and just went ahead with surgery without asking much. They also recommended buccal fat liposuction, but there was no pressure, and I didn't do it. It was just to the extent that they recommended it because doing it all at once would be reasonable in terms of time and cost? Now, 2 years later, I regret not doing it together haha.
I really used to get a double chin just from opening my mouth, but after surgery, I can confirm a hollowed-in jawline. I gained 10 kg over 2 years, but I don't have a double chin!! Absolutely no regrets haha