Nope!
Biden, even as a Senator on the Foreign Affairs committee, had classified clearance.
When his office was packed for his personal documents, the classified documents were likely boxed and sent to his home, office, or think tank office...
That's a mistake, not a criminal act. He did not knowingly take them them for his own personal use, as Trump did....and Trump admitted he did....
Nor did Biden refuse to return the classified documents, to the governnent.... As Trump did.
All Trump had to do, was return them....
but arrogantly and recklessly, he chose the criminal route instead.