Does UE5.5 support 10bit under Linux - Vulkan ?

I have this warning everytime I launch the editor on a project with backbuffer R10G10B10A2 :

LogVulkanRHI: Display: Requested PixelFormat 18 not supported by this swapchain! Falling back to supported swapchain format…
LogVulkanRHI: Creating new VK swapchain with VK_PRESENT_MODE_FIFO_KHR, VK_FORMAT_B8G8R8A8_UNORM, VK_COLOR_SPACE_SRGB_NONLINEAR_KHR, num images 3

Is there any way to have this working ?