In my universe, there are sixteen living species from the Homo genus: anatomically modern humans, therianthropes, vampires, wizards, trolls, orcs, goblins, gnomes, ogres, dwarves, giants, halflings, elves, merfolk, angels, and demons.
In some species, both males and females (and by extension, intersexes) have facial hair. This is the case for dwarves, for therianthropes, for goblins, for halflings, for wizards, for gnomes, and for demons.
In some species, both females and males (and by extension, intersexes) lack facial hair. This is the case for elves, for vampires, for ogres, for giants, for merfolk, and for angels.
In all other species, most individuals with facial hair are males. This is the case for anatomically modern humans, orcs, and trolls.
So, I wonder why would adults of either sex normally have facial hair in some species, and at the opposite, why for others, most adults do not have facial hair.