Debugging simple C programs in VS Code?

I just use gdb. If you prefer something more visual you can look at gdb dashboard or some front end

I have used this extension: https://marketplace.visualstudio.com/items?itemName=ms-vscod...

The page provides links to various bits of documentation, including this link with instructions on how to set up debugging: https://code.visualstudio.com/docs/cpp/cpp-debug