Haaland is now in a tougher competition than at his previous club. Keeping fit is something that must be done. this will help him not to spend too much time recovering from an injury.
But seeing Haaland's game quickly get support from his team, I don't think it's difficult for him to score a lot of goals this season. there is no reason for Pep to put him on the bench. Haaland will be the new star of the EPL.
I do agree that it is going to be a bit of a tough situation. But at the end of the day, it is Haaland we are talking about and we all know that he does what he does because he can do that. We shouldn't be shocked to see him scoring 20+ goals a season for many seasons in a row. Certainly maybe he wouldn't be scoring 40 goals a year in a single season (in the league) but it would be possible to reach 20+ goals a year every year for nearly a decade, it looks like a potentially possible thing.
We have to wait and see, maybe he will finish the year with 20 goals total instead of just league, or even not that, or maybe he will finish the season with 50 goals total, who knows?