Planning a gaming setup in a small space means knowing your limits. Start with...

https://echo-wiki.win/index.php/How_Much_Space_Does_a_Gaming_Setup_Really_Need_for_PC_vs_Console%3F

Planning a gaming setup in a small space means knowing your limits. Start with a desk around 100 to 120 centimetres wide to fit your monitor and keyboard comfortably. Use a monitor arm to free up desk space and keep your screen at eye level