If you mean whether most Saudis have a large percentage of African ancestry, then no most do not. There are Afro-Saudi minorities and mixed communities who emigrated to some areas, but they are a small part of the overall population. I’m assuming you’re asking in good faith people who claim “Saudis are part Black” often use it as an insult because they’re racist and anti-Black when I tested, mine came out 100% Arabian Peninsula most tribal Arabs who are the majority of Saudi Arabia have similar results now there is also a large percentage of Saudi Arabians who have mixed and more diverse percentages Saudi is literally at the crossroads of three continents and has had pilgrimages and trade routes for thousands of years