- Fuzzy file search - I can't find a way to do this in nano? Where you can search a whole directory by name for the file you want to open. This is very useful in larger projects when you need to jump about a lot.

- LSP and all its uses - jump to definition is a big one.

- Window management - while you can use a multiplexer, using one session allows copy/paste to work, saves your file/search/command history, etc.

- While often overstated, it is undeniably more efficient... once you've learnt it.

However, if you are not doing programming, but are just editing e.g. Linux config files, then I would probably stick to nano (in fact, I usually use nano for these jobs, since getting my neovim config to work when running as sudo failed).