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

https://trentonsexcellentthoughtss.evergrovio.com/posts/do-i-really-need-two-monitors-for-gaming

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