The issue here seems to be the landlord.
I'd buy my own place, if there would be anything available. Probably need to move to another city or country.
And every single construction project takes forever. And costs a fortune. And it is impossible to build housing fast enough.
The reason to be in Berlin has always been its great art scene. Now they are actively destroying it. What's left is a few Rossmanns and an Edeka.
The delay is inexcusable but the resultant airport seems pretty good. Why do you consider it one of the worst in the EU?
This is such an interesting cultural divide. As a German moving abroad, I was shocked to find ugly light fixtures already on the ceiling. I’d wanna make the space my own and not live with my landlords decor choices.