Planning a gaming setup in limited space means choosing a desk about 100 to 120...

https://josuesbestword.quillnesty.com/posts/how-to-make-a-living-room-console-setup-look-normal-when-not-gaming

Planning a gaming setup in limited space means choosing a desk about 100 to 120 centimetres wide. This size fits most monitors and leaves room for your keyboard and mouse