I would just like to point out that most of us who have ever had a job at an office, attended an academic institution, or lived in rented accommodation have kept stuff in someone else’s desk drawer from time to time. Often a leased desk in a building rented from a random landlord.
Keeping things in someone else’s desk drawer can be convenient and offer a sufficient level of privacy for many purposes.
And your proposed alternative to using ‘someone else’s desk drawer’ is, what, make your own desk?
I guess, since I’m not a carpenter, I can buy a flatpack desk from ikea and assemble it and keep my stuff in that. I’m not sure that’s an improvement to my privacy posture in any meaningful sense though.