Despite losing Lewandowski, Bayern Munich is now a strong enough team. Sadio Mane has been able to fit in well with the team and has been consistently performing well. Overall, Bayern Munich's attack is still strong. Bayern Munich will be able to maintain their dominance in the Bundesliga this season as well.
Not much of a problem after Bayern Munich sold Lewandowski to Barcelona because they are a team that is still capable of dominating the Bundesliga with a number of quality players. I believe they are still safe to win the title, and that was evident after how they won match after match which didn't look difficult. Mane looked like the perfect replacement for Lewandowski, he's adapted well so far and scored goals too. After Liverpool, then Bayern Munich is the right team for Mane.
Bayern Munich will not have to deal with too many problems since they are now playing in the Bundesliga, and they clearly do not have any competition in the Bundesliga at this time. It does not matter whether or not they have Robert Lewandowski on their team. There is no doubt in my mind that they will win the league title without too many problems. It is evident that Bayern Munich is still very capable, and I don't think they have felt anything because Robert Lewandowski is no longer on the team. Despite the fact that Bayern Munich may lose one or two games at the beginning of the season, they are still going to win by at least 10 points at the end of the season.