There are a few issues with the classified documents that I haven't seen any reporter really asking.
1. There are different markings for the level of classified documents. They are not equal in their importance.
2. Those making the decisions to classify or not almost always error by over classifying the documents.
3. Just because a document was classified as top secret on January 1, 2020 doesn't mean it is still top secret on January 1, 2021. The information becomes widely know as it is in the current news.
The real problem that should be obvious is the difference in the way Hillary Clinton, Donald Trump, and Joe Biden have been treated in by the FBI and DOJ about their possession of classified documents.
If my memory is right I think almost all former presidents from Jimmy Carter on have had a few classified documents found after they left office and often in presidential libraries when getting ready to display things while they were in office.