By the way I have just noticed that the opening game is going to be
Bayern Munich - Leipzig for the new season.

The gap of odds is huge though but it is totally normal...
1.25 for Bayern Munich win while it is 10.00 for Leipzig to do so. 1.25 is like a joke for bettors of course. Bayern Munich win & BTTS has 2.19 odds. I would love to take that risk honestly. It is the beginning of the season so the defenses might not be very solid already.
I agree that due to the porosity of Bayern Munich's defense, they are likely to concede a goal against Leipzig even though they will win the match so i don't think it's a big risk to gamble on that odd of Bayern Munich winning & BTTS which is about 2.19 odds. Leipzig was very weak last season and they ended in the 7th position and i haven't really heard about any quality signing the team have made in the transfer market which means they may continue with their last season performance. This is the first game of the season, Bayern Munich will want to have a good start and with the availability of Harry Kane they are sure of winning Leipzig. Am only sorry for Bayern Munich because one of their major attacking midfielder Jamal Musiala will not be available due to an injury he sustained at the club world cup which his absence will pose some threats in the midfield but i trust Bayern Munich to win Leipzig regardless that the chances of conceding a goal is possible.