If you are going to declassify something then make the documents public pronto. I figure Trump might have been sitting on documents he declassified in order to use them at some future date to prove crimes and corruption. If so it didn’t work out so great for him.
“If so it didn’t work out so great for him.” Who is working out for Marc Alias?
The act of declassification is a Presidential order that starts the process for release of the documents, after they are vetted for several issues such as "sources and means" and personal information. Trump declassified and the bureaucrats refused to perform the release process.
I seriously doubt that Trump was deliberately withholding release of the declassified documents - it's just that the deep state refused to follow his release order.