Cuerrent gov is left? Omg. They support and pay money for ultra right organisation and racist movements! Populism is not "left"!
In the case of the current ruling party, they certainly brand themselves as right-wing and they want to occupy the whole spectrum from the center to the right. However, their way of thinking in economic terms, their dislike of private business, their understanding of the function of the government and local government, of centralization, public vs private property etc. - all this is very much related to their experience of the past socialist regime. The reforms they are doing right now basically mean taking money from individual people running their own businesses and transferring them to the rest, creating one of the most weird taxation schemes Poland saw so far.