I imagine they were kind of busy managing population, war, cities... but as free time living in palaces and being compared as semi-gods, what were they doing ?
Maybe I should have posted this in #nostupidquestion ahah
There's always more to be said on the topic, but u/cleopatra_philopater gave a great answer to this in What exactly did Egyptian Pharaohs do? What were their duties and responsibilities?
For further reading about the day-to-day life of Egyptian kings, I recommend The Pharaoh: Life at Court and on Campaign by Garry Shaw.