Bayern Munich and Dortmund battle it out every season in the Bundesliga, Dortmund unfortunately lost last season. However, I think if the Dortmund team adds a suitable player to replace Haaland, then Dortmund will go ahead of Bayern Munich.
The last time Dortmund won the Bundesliga was in the 2011-2012 season and after that Dortmund no longer won titles in the Bundesliga including last season where Dortmund were only able to secure runner-up positions in the Bundesliga. Speaking of players, I see that Dortmund always have the best players in their squad who they will eventually sell to other teams for more money.
Because Dortmund is very good at training players and making players very talented as in several examples that have been seen by everyone, so Dortmund's defeat last season in the Bundesliga was not on the factor of their players, but on the factor of Dortmund's luck which was still very thin.