It's a pity that the Bundesliga lost such a bright player, but I think Borussia will quickly find a new young talent and make a genius out of him in a couple of seasons. They have something like a conveyor 
It will be interesting how Haaland adapts to the Premier League and how often he will be injured - because this league is tougher than the German one.
Bayern usually don't let such great and young players go but unfortunately the pandemic causes financial issues with which Bayern can not spend big budget for both transfer fee and salary fee for Haaland. They admitted it via Kahn and they will have to find another striker to replace Lewandowsky but at lower cost than Haaland. It will be interesting how Haaland adapts to the Premier League and how often he will be injured - because this league is tougher than the German one.Interesting. I think the main stumbling block was the huge salary of Haaland, as the cost of the transfer looks very adequate. On the other hand, I don’t know what options Bayern will be able to find in the context of the fact that the Premier League and other big clubs are ready to pay crazy money for stars. Maybe their only option is to develop their own player or buy some very young ones with the hope that someone will grow into a star player (they still have a few more years left as Lewandowski is capable of being number 1 in the team and in the league).