How to light a home-office desk without creating glare
Good desk lighting should illuminate the work surface without producing a bright reflection in the display or a harsh contrast between the screen and the room.
Keep direct light off the screen
Aim task lighting toward the desk rather than straight at the monitor.
Use layers
Combine practical task lighting with softer room light so the display is not a bright rectangle floating in darkness.
Position for handedness
For writing and paper work, place the lamp so your dominant hand does not cast the main shadow over the page.
Consider footprint
On a small desk, clamp lamps and monitor bars can return several useful inches of surface.
Workroom Standard conclusion
The best lighting setup is usually not the brightest. It is the one that reduces contrast and glare while keeping the work surface clearly visible.