"Guy" and "man" have different connotations with adjectival nouns. Like "tree guy" = arborist but "tree man" = he lives in a tree, or maybe he is a tree.
it might just be because im sleep deprived from jetlag rn but this r/relationship_advice post is making me cry actual tears of laughter. i read the post at first and was like yeah pretty standard whatever but im nosey so i clicked on the drawing op linked and i was not mentally prepared for it. putting it under a read more so you can get the same experience as i did