Take a photo of the empty or current corner from the doorway, with the window visible so the AI can read where light comes from. Shoot in daylight, phone level at about chest height, and include the floor and the wall where the desk will go.
Upload it to the AI home office design tool and be specific: "keep the window and walls, add a white oak desk perpendicular to the window, black task chair, closed cabinets below open shelves, muted green walls." The tool returns a photorealistic image of your own room with that setup, so you can check whether the desk crowds the door or blocks the light.
Try two or three versions: the desk facing the window, the desk on the side wall, and a version styled for your video background. Seeing them in your room makes the choice obvious and gives you a shopping reference for the desk size and colors.