Germanic people including Scandinavians have Hun Y-DNA.

Attila the Hun appears in Germanic epics as Etzel in Germany and Atli in Viking Scandinavia where he impregnates a Germanic princess.

https://www.researchgate.net/publication/383891196_The_Huns_in_Scandinavia_A_new_approach_centered_around_modern_DNA

https://demokrata.hu/world/descendants-of-the-huns-are-living-in-todays-sweden-exclusive-interview-899486/

https://www.academia.edu/87950565/The_Huns_in_Scandinavia_A_new_approach_centered_around_modern_DNA

https://www.academia.edu/126712215/The_Huns_and_their_allies_in_Scandinavia

https://discover.familytreedna.com/y-dna/R-S15948/story

https://www.nature.com/articles/s41598-019-53105-5

>20-70% Germanic
>30-50% Celtic
>5-10% Imperial Roman
>10-30% Balto-Slavic
>1-4% Hunnic
>some Germans are less than 10% Germanic