Yeees, lmao I know a girl in my year in high school who was trying to become an "idol" and then got dropped by the label because she couldn't lose the weight due to going out all the time and getting drunk off her chubby ass.
But they have such a rote surgery formula where they do double eyelid surgery and a nose job as like a "foundation," and then most will also get implants in their chin and forehead to make their face appear more 3 dimensional, and also cuts on the front and backs of their eyes to make them appear larger. I'm not inherently anti-plastic surgery but the degree to which so many people look the same is disconcerting and honestly ugly and uninteresting in person. There's so many plastic surgery in Korea it's ridiculous and some of them look so sketchy that I am often genuinely really curious as to who goes there. It's become so normalized that there's such a blasé attitude to it and seeming lack of realization that it actually is a surgery. Botox is so common that it's not even discussed as surgery, and one that everyone does without talking about (and I think is really 'Korean' in that I don't think it is a "thing" in the West) is chin botox, which paralyzes the chewing muscle so that it atrophies due to disuse so your face appears more V shaped. It only lasts around 6 months max so it requires a lot of maintenance though.
Of the more wtf kind, there's surgeries to make your mouth "tails" i.e. the ends of your mouth curl up a bit even when you relax your facial muscles so you look more "welcoming," there's surgery to get fat injected under your eyes called "aegyo sal" (which I personally really don't like...)
http://www.kpopsurgery.com/procedures-explained/what-is-aegyo-sal/ , dimple surgery.... etc. etc. etc.