This bike lane is on the left side, but the bike lanes in the rest of the city are on the right. Someone then thought the best way to connect them is to have them cross 2 streets to get to the bike path leading to the right, and from there take 2 left turns if they want to go left, which also has a separate lane for right turns - just for the cars, of course, so that is another lane bicycles need to cross.

So, depending how the traffic lights work, bicycles have to wait up to 5 times to do a simple left turn. The traffic needs to flow after all, and traffic just means car traffic to some city planners.