I wondered about it, but didn’t follow up. There is or was an attribution of origin to the Huns for Hungary, but scholars don’t take it seriously apparently.
https://en.wikipedia.org/wiki/Huns
https://en.wikipedia.org/wiki/Finno-Ugric_languages
https://en.wikipedia.org/wiki/Avar
I was just checking out gold Scythian art, and it was noted that the Scythians “just disappeared” in 200-AD.