What do you define as ugly right now? Do you have any statistics for that? Where in Brandenburg have you been already? I am looking forward to your detailed answer.
I have seen a lot of Germany. Before that, I lived in Lower Saxony for over 20 years. In Lower Saxony, you have everything, including mountains, lakes, and forests. And what Brandenburg lacks are these cool towns of 30-40k inhabitants that have everything. Here, within a 100 km radius, you either have small towns that do have supermarkets, but for clothes/hardware stores you have to go to the city, or the big cities like Potsdam. In Lower Saxony, I lived in Goslar. You didn’t have to go anywhere because you had everything. Also, unfortunately, you still notice when you travel from West Germany into East Germany.
And don’t forget, ugly is always a subjective judgment, where you won’t find any statistics. In 2020, even more people moved to Brandenburg than, for example, to Berlin. But that was rather due to prices and the housing offer.