Remove the pieces in the reverse order they were installed.
So, take off the doors and drawers.
Remove the trim at the ceiling.
Remove the trim between the upper cabinet and desk
Are the shelves fixed? If not, remove them.
Are the upper cabinet sections attached to each ither? If so, remove those fasteners and the face frame trim at the front of the cabinet.
Remove the fasteners that attach the upper cabinet to the wall, remove the upper cabinet.
Remove the desktop, it's likely attached from the underside and sitting on a small ledger under the desk area.
Remove the supports and the lower cabinet.
The carpet will probably look different.
I don't see a whole lot of useful material that someone would want to remove it for you, to be honest. And would you really want someone possibly damaging your walls?
Some plywood scraps but that's about it.
The lower cabinet could be useful by itself.
I'm a little jaded because I save tons of scraps but most of it just stays leaned in the corner.
You could save the parts like this guy:
https://youtube.com/shorts/HbZGTSc_buU?si=GqHt6SLcqHZiG-iG