Yes, Bayern Munich has improved a lot with Vincent Kompany, currently Bayern Munich is much better than Tuchel. Their performance has changed a lot this season, and they are playing a big role in winning the title in the Bundesliga. Although this season, Leverkusen will be in a lot of competition with Bayer Munich, as they are competing with a very small point difference in terms of points. Winning the Bundesliga is very important for Bayern Munich, so they will not give up this season but will try to improve their game. Vincent Kompany needs to be tougher and he needs better speed to continue to be strong, which he can be successful in giving to Bayer Munich.
I don't know why most person be sounding really impressed by the Bayern Munich improvement in a way that sounds like they were never good or they were performing too poorly and so now they are doing much more better than ever, its really not that way because even before tuchel took over as the manger of the tea, they were doing quiet well until they had the tuchel era which didn't turn out nicely but regardless they did a little well only that they didn't win the league title then, so Kompany is actually doing a good job but he didn't come to meet a really terrible team so he had little work to do literally.
That is the most important thing most people need to realize. Bayern Munich finished 23-24 season with higher points than 22-23 season, but they won the 22-23 season while losing the 23-24 season. That happened because even though Bayern did slightly better (I think it was one point), Leverkusen had an unbeaten season and that's why they won. So by logic, if Bayern ends with less points than last season but still win the title, are we going to say they are doing wonderful?
I do not think so, Kompany isn't running the team to the ground and like 7th in the league or something, but he is still not overachieving neither, they are still doing just alright, they still have plenty of stuff missing at the same time as well.