Karaganda muralism. Art or propaganda?

Karaganda truly abounds in the presence of objects of muralism. Those are gigantic mosaics, ingenious reliefs, modern murals, street arts even. And it's not by a chance that Lenin once said: "Art belongs to the people", because all this muralism on the walls is always accessible to our contemplation. But there is something that unites the works of the last century and even some modern ones. Were they created only for aesthetic reason or with a certain ideological message? Mosaic depicting a worker - is it art or propaganda? Everyone shall answer this question by themselves.