I used to do debuggers until I started doing embedded and dipped my feet in multithreading (2 different projects). After many hours lost because the debugger straight lied to me about which line of code has been executed, a colleague suggested that I just do a printf like a filthy beginner. And 🤩it worked🤩 and I never went back to the unreliable world of debuggers. Even though now I'm mostly working with single-threaded python scripts.