The C/C++ extension actually uses the same underlying engine as VS's C++ IntelliSense. If you're missing things like error indicators then it's likely you just

The C/C++ extension actually uses the same underlying engine as VS's C++ IntelliSense. If you're missing things like error indicators then it's likely you just need to configure it a bit more precisely- VS Code has a bunch of ways to do that, but they're all sort of DIY, while VS's is set up out of the box if you're using its project format or CMake support.