If you want to start using Emacs as your text editor, I recommend starting from Doom Emacs.
Although Markdown is good enough for 📓 Zettelkasten, wikis and such (cf. Emanote), for writing outline content Org Mode in Emacs shines the best.
Adding a neovim plugin: telescope.nvim
The telescope.nvim plugin gives us Doom Emacs-like fuzzy finder for standard editor operations, like opening files or switching buffers.