I tried to use C++ on a new project and what finally killed me was the IDE. I wanted to use the newest language version, with modules. Visual Studio's autocompletion and jump-to-definition fell apart with modules. This was demoralizing, because I was under the impression that Visual Studio was the best C++ IDE, and if it can't handle language features 4 years after their release, what does that mean? CLion or Emacs+clangd were also a pain. The editing/IDE experience has been much nicer in Rust.