I mean when defenders focus on Haaland, from there their focus on other Manchester City players will decrease, from there they can go in to become another target for Manchester City's attack.
Bernardo Silva and De Bruyne have a great opportunity to play more aggressively when Haaland becomes the prime target for Inter Milan's defenders. In the Final match, I predict Inter will employ a 4-4-2 formation where their defensive line will be slightly stronger compared to their game against AC Milan. Man City will adopt a more attacking and aggressive approach, while Inter will prioritize defense and counter-attacks.
Almost all Italian clubs have good defenses, so it's possible that Inter Milan will play defensively and take advantage of counterattacks, but I believe Guardiola knows how to handle that, he's a smart coach so he can set a strategy to face Intermilan later.
Manchester city has won the English league this season, next is to win this CL as well as the FA, I think Manchester City's main target for the treble winner will be achieved because they have great players now compared to last season so Manchester City only needs to beat Intermilan and Manchester United to achieve treble winners.