If by "Finnic and Sami people" you mean populations that spoke the ancestral languages of Finnic and Sami languages, those were along the Kama River possibly as late as 2000 BCE. Scandinavia and Finland had been inhabited for thousands of years before that. Sami received loan words from the languages spoken in these parts before any still living languages, but the languages themselves have died out.Finnic and sami people were original people in scandinavia and fennoscandia. If not, then who? Someone came here first.