Question about Medion Erazer Beast X25 RTX 3080

What is the lower part of the case, where the notebook feet are and around the keyboard, made of metal or plastic? (I ask because of heat dissipation: my current notebook is made of pastik, feels good because it is heat insulated and soft, but it gets way too hot inside, then the fan turns up.... I want my next notebook to have a metal casing so that the heat is better dissipated and a notebook pad with a fan works better).