I find it fascinating modern humans are thought to have evolved 300k years ago, but we haven't got any idea what happened before last ice age. I find it hard to believe people would just "stay in Africa" prior to last ice age (120k years ago and before) when the moment climate allowed it (~10k years ago) they spread out all over the planet.
Regarding the older finds of Sapiens, when we find DNA traces and compare them to modern DNA, we are not able to find any modern population that is descended from any of this Sapien DNA, outside of Africa, that is older than even 25k.
It is well known that Sapiens arrived in Spain 40k years ago and that they demonstrated modern behavior: arts, music, advanced hunting tools, but DNA analysis suggests this group disappeared entirely, no trace of their DNA is found in existing European populations. The picture then is that 75k ago Eurasia was covered with humans, of at least 3 or 4 different species, and all of them died, and then Eurasia was repopulated by a burst of homo sapiens that radiated out from Africa.
Of course, this picture would change if we ever found some old DNA, outside of Africa, that could also be matched to DNA in a surviving group of humans.