He's been on the job nearly 2 months. For the majority of that the players were on holiday. Even since they've returned, professional footballers only train a handful of hours a day.That’s ca 100 hours.
Very unlikely he really watched full matches...
I expect most professional managers at top clubs are working ±60 hours a week.
It's really not that hard to believe. And I would assume like anyone trying to get through a shed load of matches, he'd be watching Probably at 2X speed and prepped recordings that cut out all the dead ball nonsense of Richi's latest victim rolling about on the deck like a twat.