In Korean, Japanese, Chinese (Mandarin plus others used on the continent), Hungarian, and maybe a few other languages, the natural order of names is surname-given name. I don't use the term 'last name' for people from said cultures because, well, it's not your 'last' name. We follow 'Western' convention in international situations because we're the minority, but I do prefer it when people use the right order. Olly Hogben is a great example of doing this, he says 'Cha Junhwan' instead of 'Junhwan Cha' if you listen to his commentary during Beijing 2022.