I like Chad's solution to .emacs.d/early-init.el: (push '(fullscreen . maximized) default-frame-alist)

However, I'd like to compare it with the Lisp code that is executed by `emacs --maximize`, can someone please help with find it?

If it's better than Chad's solution, then I'm willing to update "To avoid the slightly distracting visual effect" (https://www.emacswiki.org/emacs/FullScreen#h5o-3) with code and a comment to the source file where this code is found.