Obama didn’t own what is gone so I expect they are stashed in some proper place.
Just because the system was not written up with title being held by the Former Occupant, does not mean the cohorts in the Regime did not simply expropriate the physical machinery and all the stored data. The data may be stored elsewhere, but right now, it is probably password-protected to make it inaccessible.
Nixon got burned for a lot less.
These people have a remarkably flexible attitude when it comes to protecting “their” personal bacon. ALL the incriminating evidence was snatched and spirited away.
Besides that, there were probably a dozen “back doors” into the newly installed system that are even now providing a pipeline to the internal operations of the Oval Office.
Source of the leaks, maybe? These leaks seem pretty unfriendly.