Emacs has always had a tight link with Lisp communities, due to its history, including ties to Lisp Machines, so naturally many use it.

However, as someone that rather use Lispworks, Allegro, Racket, there is also Cursive on top of InteliJ.

However note that XEmacs was my IDE replacement during my first UNIX decade, due to lack of proper alternatives, so I do know about what Emacs and its derivatives are capable of, no need for yes but replies.