At that time, the free distribution of housing was mainly due to the high subsidies from the state, and people only had to pay a small amount of rent. Especially in the era of Khrushchev, his large-scale housing construction at that time also amazed the whole world, feeling that the Soviet Union had entered the capitalist society in advance, which was simply unimaginable. Although these houses have some problems, such as incomplete supporting facilities. However, in any case, many people do benefit from housing.
Now it seems inconceivable that the Soviet Union allocated housing for free, but it was decided by the historical period at that time, mainly because of the intention of the leaders, and now it has no reference significance.