>>213833562It's just Sweden trying to appropriate Norway and Denmarks relevance in history.
The Rus were the Wielbarks that returned to the Baltic after having accumulated wealth and experience in their adventures down south. The Slavs converted to Roman-Catholicism as a hedge against the returning Wielbarks bringing a mix of Roman-catholicism, Arianism and Orthodoxy to the would-become polish marshes. When the Poles decided to publically announce their allegiance to the Pope in Rome, is when the Rus scattered all over the place, into Kievan Rus, Constantinoples Varangian guard, back to scandinavia, died in northern crusades or simply married into the slavs.
The myth of Roslagen as the origin point of the rus is a joint swedish-polish cope story to avoid having to talk about the Wielbarks.