about particular ways to work with TeX and friends, e.g. compile sequences and the process from ideas via draft to a final document.
workflow is about how to organize one's work with TeX and friends. It can be about how to effectively organize one's ideas in preparing to typeset them in LaTeX or how to outline a LaTeX document. It can also be about how to organize typesetting projects, e.g. using version control on the .tex files.