A better desk is rarely about more equipment. It usually comes from removing clutter, sorting power, and creating one place where things belong. Once those basics are handled, more hardware is rarely useful.
A USB-C hub works best when it is quiet and unnoticed. It is useful if it reclaims ports for storage, headphones, or display, but less useful when it turns the desk into a nest of cables. It should ideally make daily operation simpler.
A good desk lamp also makes a large difference by improving contrast without turning work away from the screen. If it is adjustable and unobtrusive, it can improve afternoons better than many accessories.
The most defensible gear is the kind that saves attention rather than demanding it. Once a setup stops changing, small improvements matter more than new devices.