That's a terrible graphic. The games he didn't play in were generally easier.
But the best thing for Arsenal and probably Odegaard himself is to offload him in the summer unless he's fine with being a rotation option for Rice or Zubimendi. It's now the second season in a row he's been poor and I think the days of playing him as an AM in the PL are at an end.
Both Odegaard and Gyokeres would be worth quite a bit in today's transfer market, so selling them (possibly to a Bundesliga team) should be an option.