In my view, there is currently no one who can dethrone Bayern. Bayern won the title very easily. At one point they were huge points ahead. Dortmund has not even been 2nd for a long time and becoming champion is impossible. They have now also lost Haaland, who should fill that up? Even with Haaland, a championship is not conceivable. That will not be the goal for Dortmund, they just want to qualify for the Champions League.
Borussia Dortmund actually has great potential to be able to compete even more tightly with Bayern Munich. But yeah, I see they are not serious about it, they just want to have an advantage in terms of money for this team. The result as we see, they can not compete with the rulers of the Bundesliga, Bayern Munich. This makes the Bundesliga monotonous in terms of competition.
Let alone you, dortmund fans themselves don't have much confidence in their team next season

, the many star players who have left so far have continued to weaken dortmund and it's as if the dortmund management doesn't care if they can't compete for the championship trophy as long as they can get a lot of money from sales the players, so far many star players of Dortmund have left and every season they always fail to compete with Bayern Munich, even though Dortmund is the second biggest team in the Bundesliga so far but not once did they make it difficult for munchen.
Well, I'm curious about the fans, didn't any of the Dortmund fans protest or something like that to keep a key player? So I wonder why they are still Dortmund fans when they realize that this team is only for money and not an achievement. Because as far as I know, even though a team is not on the title track but the team will continue to make improvements, that way their fans will continue to support and be loyal until the team achieves achievements. But about Dortmund, I wonder what makes the fans loyal because when Dortmund have great players they immediately sell them without having any desire to retain at least one title in the Bundesliga and break Bayern Munich's dominance.