He does way too much sport things and there is things in his agenda that are truly ridiculous. But since the beginning of the year, he's doing more serious stuff. He has attended many meetings with Marge since February. For example, he attended every meeting she had recently because of the general elections and formation of a new government.
He's definitely working more than last year and doing more "heir" stuff. Too bad that Marge only remembered now that he's the future King and he needs to attend serious stuff to prepare him for his role as head of state. It should have been done almost 20 years ago