Maybe I'm missing a joke here, but if that's your workflow then there's absolutely no advantage to notebooks over something like Spyder or even VS Code.
No, that's not the workflow. You work in the notebook as normal but from time to time (say every two hours) rerun the whole thing.
One advantage of this is that it forces you to name your variables such that they don't overwrite each other. Further down the line this enables sophisticated comparisons of states (e.g. dataframes) before and after (something data scientists need)
