Logic Execution Map

Hi everyone!

Im semi new to development. Im curious if there is any software or plugins anyone has used that create a map of sorts of how the logic is being executed. I’ve been sort of been having trouble understanding how some services work/connect together, so I was hoping there was something that can be run along side an app, that shows the app starts with “npm run dev” -> then x -> then y, etc etc.

If this is not the appropriate sub, please let me know a better one to ask. TIA.