Shootings occur in all kinds of areas in the major cities, but also in smaller towns. Sweden has also had a worrying number of bombs outside stairwells in residential areas and in detached houses. Therefore, the problems are not only concentrated in marginalized areas or what the Swedish Police call, particularly vulnerable areas. Per capita, Sweden has twice as many gang members as Mexico but you can hardly compare the gang structures in the two countries.
Although it happens that innocent people die or get injured, the acts are targeted at active gang members and, more recently, tragically, their families to a greater extent.
The problems are significant in the context of gang crime, but it's not like an ordinary person needs to be afraid of being out for a walk or being assaulted, robbed, or attacked by gangs. In Malmö, which is Sweden's third-largest city and is located near Copenhagen, gang problems have significantly decreased in recent years through Group Violence Intervention efforts.
I'm not trying to gloss over the problems, which are significant, but I understand that the authorities and communities have the will, knowledge, and resources to change the situation.