Planning a gaming setup in a small space works best when you measure carefully....

https://www.bookmarkingtraffic.win/setting-up-a-gaming-space-in-a-small-room-aim-for-a-desk-around-100-to-120

Planning a gaming setup in a small space works best when you measure carefully. Aim for a desk about 100 to 120 centimetres wide to fit your monitor and keyboard comfortably. Use a monitor arm to free up desk space and keep your screen at eye level