I'm sure people are out there who just use stock emacs, but I'm not sure why you would do so instead of using something simple like nano.
But I am just so utterly addicted to vim's undo/redo that I always feel naked without it at my fingertips!
And yes, emacs is definitely a universe unto its own. The point is that as a standard command line utility, the option to use it as a bare bones text editor is always readily available to end users, without need to do very much digging into things like settings/hamburger menus. I'm sure there are many emacs gurus "at the ready" in order to answer any conceivable unanswered question about emacs posted to stackoverflow.
Maybe it has become better, but for a while I looked into it as it was popular for Go editing. Unfortunately, there is way to much predetermined flow built in, so Emacs makes it the way better Go editor for me. Back then, there was even no key binding for compiling the current file.
And as I said, the language coverage is much worse than Emacs, as it is its hackability.