This one took me a while also but I appreciated actually having to do some work to find the switch. It gets boring when you just automatically spot them all the time. One of my companions made a comment about looking around and that prompted me to start checking everything.
I'd rather they have hard puzzles . . . and if you do get stuck its always easy to google the answer.
looking around is one thing, a classic sconce or bookshelf lever or button under the desk I would look for. yeeting all the crates away from random walls is something else.
