Don't focus too much on some strong teams that can beat them, because sometimes a team that is considered weak and predicted to lose can actually make a surprise. Luck is usually something that speaks volumes in this case, we have seen many matches whose results are determined by luck.
Bayern Munich has all the needs for them to win the Bundesliga and they have shown that they can even maintain it for more than a decade before Leverkusen showed a very good game last season and finally broke Bayern Munich's dominance and recorded the championship title after 120 years they could not get it.
Now it's still early and I will not be too early to predict who will be the champion, because in the standings there is no clear construction.
In football anything is possible so we often see big surprises but in percentage terms it is small especially for teams that are able to maintain their consistency.
for example like Leverkusen last season.
Bayern Munich has not proven anything now from the changes they have made, I think so far we have not been able to measure the strength of any team including Bayern Munich whether they are better than last season or not, but what is certain is that the Bundesliga competition this season will be much fiercer and in percentage terms I think Bayern Munich is still the same as several other top Bundesliga teams.