As far as I know, Kompany is a coach who is not on the top list of coaches they will choose. I read the news which said that actually the Munich management had approached several coaches who I thought were great coaches but unfortunately they rejected them. An example is Xabi Alonso who chose to try to stay at Leverkusen. In my opinion, it is very difficult for Munich to dominate the Bundesliga and become one of the favorites in the UCL. I agree with you that Kompany is not an experienced coach so I don't expect much from him.
It is true that Vincent Kompany is not the only coach appointed by Bayern Munich because several great coaches appointed by Bayern Munich rejected the offer to train the Bundesliga giant club for various reasons. I also did not expect a club as big as Bayern Munich to have difficulty recruiting top coaches even though they should be It is quite easy for top clubs to appoint coaches with the offers given and Bayern Munich also has quality players and stable finances so they can recruit the players the coach needs but unfortunately the great coach rejected Bayern Munich's offer and was forced to appoint coach Vincent Kompany who in fact not the first choice coach.
We also don't know yet whether Vincent Kompany's coaching system next season will be able to give Bayern Munich another Bundesliga trophy or whether it will be difficult to compete in the league. The most important thing for Bayern Munich is to be able to dominate the Bundesliga again, but it looks like Leverkusen will provide competitive competition so it won't be easy for Bayern Munich to dominate the league again, to compete in the Champions League I don't really expect Bayern Munich to be as strong as before.