Discuss what happened in the buildings especially residential buildings that were especially constructed for the world cup

discuss what happened in the buildings especially residential buildings that were especially constructed for the world cup as a lot of the buildings will be unused as most of the people will left to their countries after the world cup
for example are they constructed with materials that can be removed and reuse for another purpose or they plan to use it for different purpose like schools And how they close the post that were happened as the building will b
examples from two different countries