I'm not sure how people typically use neovim, but in Zed I find multiple cursors (especially combined with multiple file buffers) extremely ergonomic for refactoring quickly and easily where tools like find and replace or simple renaming doesn't suffice. It lets you scan through and add cursors where you need them, then perform your edits across locations and even files all at once. It's so nice that it played a significant role in me keeping Zed early on despite it missing a lot of extensions I used in VS Code.