When planning a gaming setup in a small space, focus on a desk about 100 to 120...

https://lanescooljournal.inkharbory.com/posts/pc-gaming-setup-in-a-shared-house-how-to-keep-it-tidy

When planning a gaming setup in a small space, focus on a desk about 100 to 120 centimetres wide to fit your gear without crowding. Use a monitor arm to free up surface area and keep screens at eye level