Is there a neshama yesera on chag or only shabbos?
Many rishonim wrote there isn’t (although the rashbam wrote there is a neshama yeteira. דברי יציב wrote there is but less than shabbat.) The nafka mina is if you have to say the bracha for besamim at havdala on motzei chag. Practically, we don’t say the bracha for besamim.