why not vim
Vim is fine if all you need is a decent text editor, but emacs brings so much more.
Endless customization
Org Mode is fantastic to keep notes (and also a more logical markup language than markdown)
You can open multiple files side by side in emacs
Emacs has a builtin terminal emulator (but I would recommend using the vterm package)
Why would you need a terminal emulator if you run emacs already in a terminal? Well, because emacs also runs as a GUI app, including support for displaying PDFs and images.
Editing remote files via ssh (truly via ssh, not a "use ssh to install and start a special server" kind of deal like vscode)
Magit is one of the best git clients there are
If you really want to, you could even use emacs as an @x11-official window manager
With the evil package, you can continue using all the vim motions you are used to.
Contrary to vim, you can exit it without restarting your system ;)
And much more