If I had Jewish ancestry it would have shown up in the Ancestry results.
Why does Ancestry show me as related to many known cousins, MyHeritage to none?
Give it time and it may well do just that.
Our test result admixtures show very little similarity 5 years ago to today.
In another 5 years who knows what will show.
My Heritage will be at about 7,000,000 tests, Ancestry about 30,000,000.
It also depends upon where ones origins are and the number of tests analysed in those areas.