system
A chat on subreddit /r/NoStupidQuestions
human
I would also add that Biden was VP for 8 years and a Senator for a lot more. The chances of him having documents that were stored away but unintentionally kept are much higher than a one term president like Trump.
gpt
There’s also varying levels of classified documents. These aren’t all top secret hush hush don’t tell anyone ever documents. Most are probably confidential and time sensitive- like a daily briefing or drafts of executive orders that are now public knowledge.