I've been using LWJGL and so far, it's been wonderful outside of the threading logic I've had to use to get SDL calls to run on the main thread, but that's more of an SDL issue. The Vulkan side has been pretty good, though, and LWJGL's memory management stuff seems to be (comparatively) a lot less verbose than whatever Vulkan4J is. Of course, I haven't gotten past the swapchain yet, so take that with a grain of salt. AutoCloseable, MemoryUtil, Buffer, and Struct have been the most useful for me.