It's more complicated as you think. It is proved fact that nomad hungarians were partly oghur turkic speakers:
https://en.wikipedia.org/wiki/Kabar
The nomad hungarian elite had turkic names, turkic religion, turkic culture, homogeneous turkic genetic and the modern hungarian language has 9,5% turkic word, mostly these are oghur turkic not common turkic as turkish, kazakh etc so these words are very old and not connected to ottoman rule, so hungarians didn't adopt it from ottomans. The greek-byzantine emperror called Constantine VII Porphyrogenitus described nomad hungarians as turkic speakers and he called Géza as King of Turkia.
So it's very possible that nomad magyars didn't speak the hungarian language what is exist today (there is no any proof for that), but the hungarian speakers were already here before the 9. century and later they assimilated the magyar elite, and the local hungarian speakers adopted the identity of state creator magyars and this elite and common folk united into a same ethnic group. But many things are not clearly, and there are many theory.
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