https://www.newsweek.com/how-joe-biden-classified-documents-compare-donald-trumps-1772552
Cases are very different. Most notably, when Biden's lawyers found these documents, they immediately notified the Archives and turned them over," lawyer and former federal prosecutor Peter Zeidenberg told Newsweek.
"In Trump's case, it was the government that realized the documents were missing and then tried, repeatedly and ultimately unsuccessfully, to get them back. Even after being served with a grand jury subpoena, Trump did not return all of the documents," he said.
"And in Trump's case, these highly classified documents were scattered all over his hotel, including in unlocked storage areas and his desk drawer. Finally, Biden had a security clearance throughout the time he had these documents, while Trump's security clearance was revoked after he left office. So cases are really only superficially similar."