Planning a gaming setup in a small space starts by choosing a desk about 100 to...

https://atomic-wiki.win/index.php/How_to_Keep_My_Setup_Looking_Polished_in_a_Tiny_Room

Planning a gaming setup in a small space starts by choosing a desk about 100 to 120 centimetres wide. This size fits most gear without crowding. Use a monitor arm to free up desktop space and create more room for your keyboard and mouse