You can easily add cables under or behind the desk for a quick and efficient cable management.
There are several sizes to fit most desk thickness, and if it isn't enough there is also the source Fusion 360 file with a parameter ‘desk_thickness’.
I printed them in PLA with 4 perimeters and 20% infill and no problems since 3 years. You can fix them with adhesive paste in the top grooves if they move too much.
The author marked this model as their own original creation.