Org mode is a better readme and a better notebook :)
If there isn't, it seems that "org mode" is a very bad name and it should be called simply "emacs". Or, if you want to be too precise, "emacs, with some configuration tweaks".
It's as much "emacs with some configuration tweaks" as VS Code is "chromium, with slightly improved <textarea>".
W.r.t. the good question in a comment that definitely has more than just that, yes, there are partial ports of Org mode to vim, VS Cod{e,ium}, and AFAIK Sublime Text, but Org does make use of some facilities of Emacs that are not as easy to replicate on these editors. For exporting, Pandoc can help to some extent, but it's imperfect and not as configurable.
Ha! I love this, definitely going to say it in public.
Apart from this joke, I asked a well-intentioned question. I have seen people doing magic with org-mode, treating text documents as if they were notebooks, running snippets of code by selecting them, then having the output as text. I would like to do something similar in vim, if possible.
If you want to edit org files I really don’t think there is a good substitute for emacs if you want all the features, however you can definitely do basic modifications with any text editor.