I explained in previous videos with Jay Smith that the Quran was not first preached as the "divine revelation" but it was made lately as a book by the Arab rulers out of the notes and drafts that the preachers who urged them to seize Jerusalem left behind.
Those notes and drafts were shorthand scriblings made by the preachers for their personnal use. They were used to prepare sermons, or they were sermons'instructions, or notes from sermons.

Questions were asked about this in the comments by the viewers of videos of Odon & Jay, on Jay Smith Pfander Films YouTube channel. Let's hope my answers will explain this hypothesis.

More here: https://thegreatsecretofislam.com/
Source:    • Odon #4: No dots & vowels = many Qur'...