The map posted above is interesting. Basically, Stockholm and Malmo suburbs are conservative, while Malmo exurbs are far right.
I assume Stockholm suburbs are conservative for the same economic reasons suburbs everywhere are (Clinton's campaign strategy notwithstanding), but can somebody say why the Malmo area is so conservative? Do lots of immigrants come via Denmark and settle there? Also, are there many native Swedes/Danes who routinely cross the border there as part of daily life?
https://www.electoralgeography.com/new/en/category/countries/s/swedenIf you go back and check older results, Skane has always voted to the right of the country even when the left bloc was more popular in the past. Plus the immigration issue with Malmo becoming heavily settled by immigrants was what made the exurbs turn to the SD.
Also if you look at Sweden in this map, the exurbs of Malmo have lower wealth than that of the Stockholm metro. The conservative bloc tends to do better in areas of Sweden with higher wealth.