The core question concerns the capability of displaying video content on the Android Auto interface while a vehicle is in operation. Primarily, Android Auto is engineered to prioritize driver safety and minimize distractions. Therefore, built-in functionality to stream or directly play videos on the head unit screen is generally restricted during active driving.
This design choice stems from the necessity to prevent drivers from diverting their attention from the road. Enabling unrestricted video playback could significantly increase the risk of accidents. Historically, the focus of in-car entertainment systems has evolved from simple audio playback to more complex interfaces, but safety regulations and best practices have consistently limited visual distractions for the driver.