To set up your gaming space in a small room, start with a desk about 100 to 120...

https://garrettwigp625.tearosediner.net/screen-directly-in-front-vs-angled-monitor-for-gaming-comfort

To set up your gaming space in a small room, start with a desk about 100 to 120 centimetres wide to fit your monitor and keyboard comfortably. Use a monitor arm to free up surface space and keep your screen at eye level