I was born in Kazakhstan, one of the ex-USSR countries and had a chance to speak and help WW2 veterans in my town. Many of them shared their memories of the World War 2 and being honest none of them mentioned that factor.
Obviously it's hard to have a solid data on these kind of things but I'd be cautious about believing this. On the other side if any of them felt that way, it would be doubtful they'd publicly share that.