Fatty wang, is now a discarded-trope.
Its like Twintails or drillhair or ojou-sama stuff, for jp works. Clearly they are still do-able but no one will do it any longer.
Or like ANIMEISH blue/colored hair in urban story. (point to Quintuplet manga having brown/varient of brown hair)
For example. I had a popular CN
(konosuba style comedy/luckiestman style)
where MC encountered a handsome man, that become his brother-friend, from beginning
Only for him to get a "yang root" at sect examination.
(OP root but can't break the "yang" body. Until Golden Core)