radv supports this and it works on a steam deck so....

src/video_core/vulkan_common/vulkan_device.cpp

@@ -611,19 +611,6 @@ Device::Device(VkInstance instance_, vk::PhysicalDevice physical_, VkSurfaceKHR
         features.extended_dynamic_state3.extendedDynamicState3ColorBlendEquation = true;
         dynamic_state3_blending = false;
     }
-    if (extensions.vertex_input_dynamic_state && is_radv) {
-        // TODO(ameerj): Blacklist only offending driver versions
-        // TODO(ameerj): Confirm if RDNA1 is affected
-        const bool is_rdna2 =
-            supported_extensions.contains(VK_KHR_FRAGMENT_SHADING_RATE_EXTENSION_NAME);
-        if (is_rdna2) {
-            LOG_WARNING(Render_Vulkan,
-                        "RADV has broken VK_EXT_vertex_input_dynamic_state on RDNA2 hardware");
-            RemoveExtensionFeature(extensions.vertex_input_dynamic_state,
-                                   features.vertex_input_dynamic_state,
-                                   VK_EXT_VERTEX_INPUT_DYNAMIC_STATE_EXTENSION_NAME);
-        }
-    }
     if (extensions.vertex_input_dynamic_state && is_qualcomm) {
         // Qualcomm drivers do not properly support vertex_input_dynamic_state.
         LOG_WARNING(Render_Vulkan,