The only reason I use C++ is because that's what all the main audio plugin tools use. It's warty and annoying, although I'm confused why Java would rank higher
I shit on JavaScript for years... but Deno (built around Rust) is honestly one of the most pleasant tools I've used for development, and you get all the completion in VS Code.
My main experience using C++ was because I got stuck modifying an app written with Qt Creator, an utterly insane cross-platform framework that used (still uses? I dunno, only people in Finland ever used it in the first place) C++ for the under-the-hood processing and Javascript for the UI. For good measure, the application developers had modified all the C++ stuff with macros to the point where it was barely even recognizable as C++. Fortunately, it mattered not at all because the app's customers were ISPs who just wanted a Skype clone so they could say they had one even though none of their customers ever used the damn thing.