Rémi Bernon (@rbernon) commented about dlls/winevulkan/vulkan_private.h:
uint32_t external_memory_align; uint32_t map_placed_align;
- uint32_t swapchain_maintenance1;
This could probably be moved to `struct vulkan_physical_device` which is shared with win32u, so we then wouldn't need `has_swapchain_maintenance1`.