My experience is the opposite: I can keep my init.el in version control, and it contains Lisp code that I can run and debug by hand if needed. If some mode does

My experience is the opposite: I can keep my init.el in version control, and it contains Lisp code that I can run and debug by hand if needed. If some mode doesn't work right, I can step through its code and examine its variables. If I want to know what a key combination does, I can ask Emacs and it will tell me something like "M-s l runs the command consult-line (found in global-map), which is an interactive native-compiled Lisp function in ‘consult.el’." So I know that the combination is defined in global-map, and the function is defined in consult.el, and I can easily find the code. In VS Code it's certainly easy to install an extension. Some mystery thing happens, and there are new commands available and some programming language support might be enhanced, but it is all very opaque. If I wanted to debug the code, I have no clue where to start. I'm sure it's there somewhere but all this looks to me much less discoverable than in Emacs.