a win is a win and Bayern Munich got 3 points, still leading in first place.
The supporters of Bayern will still be happy. Not every win has to be beautiful or has to be by a lot of goals; in some games that are played in a league, a very strong team can perform unexpectedly by being held to a goalless draw, It would have been Bayern again, and that would have made the headline more for that than them not being able to score many goals in a game they dominated.
Yes, because the point is to win, in a match, what's the point of playing very well, controlling ball possession and also doing a lot of attacks, but in the end it's just a draw or even a loss. So, win is always a win. and no matter what, it will always make the fans happy with their position which is still in 1st place in the Bundesliga.
Leverkusen did it very well this time, Xabi's tactics also worked well.
Leverkusen is starting 2025 with a win but of course with conceding some good goals. 
Anyway, it was a solid performance from the whole team, This win reminds me of all things Xabi Aura in 2024. Bayer Winnerkusen is back!
Patrik Schick is one of the best Czech goalscorers in the Bundesliga and he makes Victor Boniface no more relevant.
At that time, at the beginning of the year and concede 2 goals, the opponent was Dortmund, although it is not as good now, Dortmund is still Dortmund which is one of the strong clubs in the Bundesliga. But the important thing is that they still win. and in the second match in this year, Leverkusen also won again from Mainz with a score of 1 - 0.
So here, Leverkusen so far at least in the last 5 matchers, they have won consecutively without defeat or even a draw.