Bayern Munich under Vincent Kompany has improved compared to Tuchel, they have started the season really well, they have taken the lead in the Bundesliga above Leverkusen and Dortmund, and if they can be consistent, I think they can win the Bundesliga because they really need to win their matches one after another, then focus of avoiding losing, and they need such momentum to keep going.
Although Munich has experienced a big increase, but I am sure Kompany feels depressed by the current situation. Just look at how Leverkusen is currently getting better when Alonso also has ambitions to get another title this season. While the difference between Leverkusen's points and Munich is only 4 points and it is very easy to pursue by Leverkusen.
What I see today Munich has a few weaknesses in the defense and if Kompany wants to get a title this season, he must fix the problem. Because I'm sure Leverkusen will get a greater increase in the January transfer window.