The book of Enoch does not have a verifiable source if accuracy. The original was lost and the rest was one person telling the next.
Unlike the O.T. Scrolls that required meticulous steps to simply make a second copy from the first. And if s single error if any sort - even a jot - the whole scroll was to be burned. Accuracy was paramount in duplicating scripture. Enoch not so much.
The Septuigent was not like that.
To have a scroll of scripture was rare because of the ordeal to ensure accuracy.
The scribe could not be interrupted
THey counted words and spaces
It took up to a year (maybe more) to copy 1 book.
Enoch is referred to in the Bible , but not regarding claims such as this.
If God can’t keep His message in tact and some buffoon steals a book out of it - then we are in bad shape.
I’m not disputing the flat earth theory with this - But quoting a book that is attributed to something someone said that someone said that Enoch said … is very flawed evidence. Wouldn’t stand up in court.