Describe the feature and the current behavior/state

This is a command commonly found in text editors, including vim/emacs/sublime:

Sometimes called "Wrap Paragraph", or sometimes "Fill Paragraph".
It takes a selection and breaks the text into lines at word boundaries, so
that lines do not exceed N characters (often N=80 for historical reasons
predating wide screens).

Who will benefit with this feature?

Those of us used to it from using other editors. :)