[flohofwoe]

Cross-platform Intellisense support in VSCode with the Microsoft C/C++ extension has improved a lot lately, especially in combination with the CMake Tool extension to automatically discover header search paths and other compilation settings (it used to be very brittle in the beginning on Linux and Mac).

But if you're coding C/C++ in a "proper" IDE like Visual Studio, CLion or Xcode, such features are expected to work out of the box. IME, Intellisense-like features are usually only a pain to setup in "non-integated" development environments like Vim or other text editors.