When a game requests all three, it explicitly rejects older GPUs designed for DirectX 10 or early DirectX 11 cards that only support, for example, Feature Level 10_0 or Shader Model 4.0.
Shaders are small programs that calculate the levels of light, darkness, and color in a 3D scene. Shader Model 5.0 arrived with DirectX 11. It allows for more complex "compute shaders," which help games render realistic shadows, reflections, and physics. 2. Why Am I Seeing This Error? d3d11compatible gpu feature level 110 shader model 50
If a game requests Feature Level 11.0, it is programmed to crash or refuse to launch if these specific hardware instructions are missing, regardless of how fast the GPU is otherwise. When a game requests all three, it explicitly