The box facts are not hard to know or determine. Unless someone wants to remain intentionally ignorant of the truth, it is not difficult to get this right.
In Jan, 2022, 15 boxes that had been taken from the White House and improperly brought to Mar-a-Lago were returned by Trump's people to the National Archives. The return happened when Trump's people physically handed the boxes over to National Archives representatives who came to Mar-a-Lago to get them. Once the National Archives people had them, they transported them back to Washington. This was widely reported (
example here) and confirmed by Trump himself in a tweet about this. The actual turnover happened in Jan, 2022. The news about this broke in February.
Above, I said the 15 boxes had been returned in Feb, 2022. That was incorrect and I'm correcting that here. The reports broke in Feb. The actual return of the boxes happened in Jan, 2022.
When the search warrant was executed at Mar-a-Lago this week, the 15 boxes mentioned above were NOT locked in a secure room at Mar-a-Lago. Trump's people gave those boxes to the National Archives people months before.