I suppose one reason why they haven't released those documents, or done this or that: when Trump, Patel or anyone else who now got in were talking about doing something they didn't yet have inside information. Because they were not inside. Then they got in and got it. That may have changed things. Like those Epstein files are maybe a lot more messy and much larger than they assumed, and will need to be looked at, thoroughly, before they release anything. They may have found out things they didn't expect. Or they may have found that they can't even yet find everything because the previous administration had "lost", "misplaced", etc some parts of the whole, and they are now trying to find the missing pieces, and find if they have only been hidden in some way, or possibly even destroyed, before they do anything.

I mean, it's not likely the previous administration left everything in nice organized piles for the new administration so it would be as easy as possible for them to start working with all that information etc, considering they are not exactly best of friends with each other.