Neovim unlike Emacs is an editor. Emacs is not a mere code editor, not an IDE, text-processor, or web-browser. Emacs first and foremost is a Lisp REPL, with a built-in text-editor. Without deeply understanding that aspect one can never truly appreciate the incredible power it grants you.
Do you use your editor to read and annotate pdfs? Or watch videos? Or manage the library of your ebooks? Or track your expenses? Or control project management like Jira? Or keep your knowledge base and note-taking? Or interact with LLMs? Or explore APIs like Postman? Or keep your spaced repetition flash cards like Anki? Or use it for chat over platforms like Telegram and Slack? Or find and read RFCs and manpages? Or to perform web-search, search through your browser history, Wikipedia. Do you have etymology lookup, thesaurus, dictionaries, translation? Or to order pizza? Or measure distances between coordinates on a map? Automate things based on solar calendar or moon phases? Manage all your configs, aka dotfiles? OCR images with text? List, browse and code review Pull Requests, etc., etc.
In what sense exactly is Neovim/VSCode/IntelliJ/whatever is a "huge improvement", please tell us?