Is it possible for Egyptians to get berber ancestry

[mashail]

So my mother was raised by her stepmother, and she told me that her real mother was Egyptian.
After doing a DNA test I got 4% NA in ftdna and 14% NA in MyHeritage, it was surprising that all of my third cousins ​​were from Morocco and Tunisia, and Algeria !!
Does this mean that my grandmother was of Berber origin and not a true Egyptian?

[Dr_Maul]

It is not uncommon at all

[Narration]

Possible.

[Leto]

I know your Gedmatch results, Masha. You score more Arabian than full Egyptians do!