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.