I don't think bulbs use a whole lot of energy these days. A 10W LED bulb would cost $14 per year to run constantly (US pricing). An old 60W bulb would be $83 per year in comparison.
But there's probably no reasoning with someone who decorated that room.
the soviet apartments typically had cinderblock walls with no insulation and drafty mortar gaps. the heating systems were centralized boilers which usually were not operational/operating.
It's literally all moldy. At least that's what those sofas look like. (we had some similar sofa looking similar to this and just pzr a blanket over it to make it liik nicer)
I have to be honest and I think I just out and out like it. It's mixed patterns are rather chaotic, but I love the attempts at extravagance. I'd love that front room, compared to my dull rental one.