/usr/share/maxima/5.38.1/emacs is in maxima-emacs 5.38.1-8.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/maxima/5.38.1/../../emacs/site-lisp/maxima
/usr/share/maxima/5.38.1/../../emacs/site-lisp/maxima