Sounds like a self-
PR of the authors of this "study" to raise more funds for keep reading and "analysing "some social networks garbage. Sweden is very rare in the Russian news and I can hardly remember its mentioning in the negative context. So, please, stop escalating the tension.
Regarding fake news, those guys better recall numerous cries about Russian subs near the Swedesh shore that finally turned out to be trees or just phantoms of their imagination.