Scholars and archaeologists study cuneiform writings from the time of Enoch and often unintentional verification details in The Book of Enoch improves as more and more cuneiform is analysed and studied and more digs take place and further libraries and other artefacts are discovered. Actual extant texts from just centuries after the time of Enoch do exist. The Instructions of Shurappak is a surviving extant text translating earlier texts or oral traditions actually dating from Enoch's time and his son and grandson's time when his great grandson was growing up. https://en.m.wikipedia.org/wiki/Instructions_of_Shuruppak .
How did these Sumerian texts found today as parts of the Book of Enoch and Instructions of Sharappak survive the Flood around 2200 BC so that after it around 2100 to 2000 BC scribes were writing copies of some of it? The Instructions of Sharappak presumably survived because they were proverbs given by Noah's father to Noah. It seems Noah might have either passed them on in oral form or in written form to those who later made them into the texts of which we have two actual surviving copies today. If this happened to the Instructions of Sharappak then it seems plausible the same could have happened to the writings we have passed down and translated over and over in the Book of Enoch (found too among the Dead Sea Scrolls).
How did these Sumerian texts found today as parts of the Book of Enoch and Instructions of Sharappak survive the Flood around 2200 BC so that after it around 2100 to 2000 BC scribes were writing copies of some of it? The Instructions of Sharappak presumably survived because they were proverbs given by Noah's father to Noah. It seems Noah might have either passed them on in oral form or in written form to those who later made them into the texts of which we have two actual surviving copies today. If this happened to the Instructions of Sharappak then it seems plausible the same could have happened to the writings we have passed down and translated over and over in the Book of Enoch (found too among the Dead Sea Scrolls).
