I recently started working on a quite large C++ codebase and I'm quite a bit more lost at the moment than I would be had I written all the code. I have a stron

I recently started working on a quite large C++ codebase and I'm quite a bit more lost at the moment than I would be had I written all the code. I have a strong suspicion that if I just used the right tooling (eg maybe a GUI that displayed some of the flow of the program's state, or something that made it easy to inspect the running program?) it might be a bit easier. Any tips about y'all's favorite C/C++ tools for learning a new codebase?