(which can be written in other editors: https://lispcookbook.github.io/cl-cookbook/editor-support.ht... vim, VSCode with LSP support, Jetbrains, Atom/Pulsar, Sublime, Jupyter notebook…) (just saying to not scare people. Emacs is still the best for CL IMO)
Yes, I can also wear underwear as a hat.
Please, netizen, educate yourself. Common Lisp is written in many places outside of Emacs.
If you want to wear your underwear as a hat, that's your own business. Don't blame Common Lisp, or the array of editors which have nice support for it.