When planning a gaming setup in a small space, aim for a desk around 100 to 120...

https://www.oscarbookmarks.win/planning-a-gaming-setup-in-limited-space-means-choosing-smart-space-saving

When planning a gaming setup in a small space, aim for a desk around 100 to 120 centimetres wide to fit your gear comfortably without crowding. Use a monitor arm to free up desk space and easily adjust your screen height