Start your gaming setup by choosing a desk 100 to 120 centimetres wide to fit...

https://wiki-nest.win/index.php/Do_I_Really_Need_Two_Monitors_for_Gaming%3F

Start your gaming setup by choosing a desk 100 to 120 centimetres wide to fit your essentials without crowding your space. Use a monitor arm to free up desk room and keep your screen at eye level