There is no doubt it's going to be great gesture from AC Milan management for this legendary player as they are giving him extension for some more time even we all know he is injured and have no chance to return into game Until January 2023 or February, but they have done amazing job for his respect.
Most chances FC Bayern Munich is not going to have any problem after exit of Lewandowski even they already started search for new striker because they are looking for long time settlement for this, and they could be successful in this because they have sources and finances for managing things like this in quick way.
He is not paid because he is going to change anything for the team even when he comes back, or not even if he was fully healthy. He is offered a contract, basically for giving them a cup this year, and all those years ago. He is a team legend and when you have someone like that in your team, you end up trying to convince him to stay as much as possible.
This way, you arrange this veteran to help the kids to understand and like Milan, and he does that for sure. If Ibrahimovic acts all superior and say "if I am in Milan, then everyone should be in love with it" or something like that, which will make the younger generation to want to stay even more.