I've seen many people on SO leaving comments under language-specific VS Code questions vehemently saying that VS Code is not an IDE ("Integrated Development Environment"), and that if the asker wants to do development in <X> language, they should go use "real" IDE <Y>. But I've heard enough people call VS Code an IDE as well to be confused.

Who is right? Or is it not as clear cut who is right or wrong?

I've seen many people on SO leaving comments under language-specific VS Code questions vehemently saying that VS Code is not an IDE ("Integrated Development Environment") (often paired with a statement that if the asker wants to do development in <X> language, they should go use "real" IDE <Y>). But I've heard enough people call VS Code an IDE as well to be confused.

Who is right? Or is it not as clear cut who is right or wrong?