Vulkan VK_KHR_swapchain extension behavior and present mode fallback inconsistencies
Vulkan 1.0 mandates the VK_KHR_swapchain extension, while Vulkan 1.1 promotes swapchain functionality to core; however, many drivers still expose the extension for backward compatibility, creating ambiguity about whether it must be enabled. The specification does not define which present mode a driver should fall back to when VK_PRESENT_MODE_MAILBOX_KHR cann
vulkan