At last report, the most "pure" human DNA still in existence is Australian natives who are, black by skin color.
There were so few people back in the day, if you go back 10,000 years and before that, I doubt people cared who they were effing and what their skin was.
Aborigines are 2% Neanderthal and 4% Denisovian, which is the highest among any group. That's cool.
I don't think Europeans interbred with Denisovians. Homon Sapiens and them intermingled in Eastern Asia.
I have more Neanderthal DNA than average. I thought my hulk brother had more than me, but I have more than 56% of 23 and me customers and he only has more than 17%.