handheld gaming device, Steam Deck, GPU performance overlay, real-time monitoring, transparent HUD, in-game, detailed graphics statistics, temperature display, clock speed indicator, FPS counter, battery life indicator, sleek interface design, ergonomic grip, action gameplay, indoor lighting, soft shadows, dynamic reflections, high-resolution textures, vibrant colors, 3/4 view, ambient occlusion, anti-aliasing, depth of field effect, interactive environment, modern urban setting, tactile buttons, immersive gaming experience.