Genre is a tricky word.
In genre-based pedagogy, genre refers to classifications such as story, report, analysis and argument. These genres split into sub-genres such as narrative, recount, discussion, exposition and so on.
However, lay audiences use genre to categorise particular varieties of story, such as crime, fantasy, romance, and history.
This can get confusing for everyone, so in Writelike we use genre in the lay sense (crime, memoir, advertising) and refer to story, report, argument etc as text types.