The issue with Harry Kane is that he needs to score more goals in the important games. Now at the European Championship there wasn't much coming from Kane. Penalties and one goal, the header against Slovakia which was decent positioning but rather expected from him to score that easy goal.
But Bayern doesn't gain anything from Kane scoring 40 goals in the Bundesliga when eventually they lose the important matches because Kane gets neutralized in a smart way by the opponents.
He is a good striker, but Bayern has some problems on the wings at the moment. Sané is way too inconsistent, Coman is injured frequently, etc. I think Leverkusen will play another strong season although I don't think Bayern will be as weak as last season.
Kane does his job very well, I had no doubt that he would continue to score in Bayern because they have very good support for the forwards. From the first season he was able to become the best in the Bundesliga, otherwise he does what he can do very well and Bayern’s problem was not a bad attack, but a bad second half, when they conceded too many and could not maintain the winning score.