For those who actually want to know facts, Biden never gave any classified documents to his ghostwriter.
Biden kept diaries and notebooks in which he took notes that included classified information. The DoJ has know about this habit, and allows Reagan to keep his similar diaries which contained classified information.
During interviews with his ghostwriter, Biden read from his notebooks. He noted at times some information was classified and he couldn’t read it. Other times he did read classified information, but never indicated he did so intentionally. The diaries were only briefly handled by the ghostwriter on one occasion when he couldn’t read his own handwriting and never copied.
Those are the facts according to the Hur report.