They support vulkan. vulkan is linux it runs on any and all hardware and platforms period..
unless it cant opengl or any sort of graphics, then it wont support it.
But what you need to use are the terms like HIP support and ROCm and HIPRT and rocmRT and orochi
and use the AMD SDK or materialsX and amd advanced media framework AMF or directML and every other amd computing word or term you can think of to name. i suggest you watch a heap of the youtube videos in the AMD channel, see an AMD word or term and figure out how to or where to type it in to enable it in the display driver. I've been trying with minimal success so far using windows registry and config.ini files
see my config file here:
https://www.mediafire.com/folder/prpl1rbp1o8h1/COMPUTERSYSTEMGLOBALDIRECTKERNELMODE
VULKAN would use VMA and VXR for vulkan memory allocation and vulkan ray tracing.
view sites like GPUopen.com as linked by the AMD website. However keep in mind, when something is very umm code looking its the developers tools to make your own OS and own custom ray tracing or 3d rendering software.. you dont need to reinvent the wheel just look for the microsoft/vulkan terms that are a few letters or simple words and type them in and assign values to it. unless you want to waste weeks fiddling and probably result in a sub optimal outcome im guessing teams of microsoft and vulkan developers are better at it than you are.. maybe? but assigning custom values or settings to the existing ones greatly improves whatever their default dysfunction is anyhow! vulkan1000 or vulkanx64 or infinityvulkan or vulkan9999999x99999x99999++++++++++ not sure if you should enable things like fusemultiplyadd but definitely manually enable all CPU/GPU extensions functions and display terms and attempt to if possible find ways to test them to visually verify that they are in fact enabled and working. GPU terms you can often visibly see performance values or bit depth or image quality or visual effects like lighting/shadows change as you playback youtube video or whatever as a 3d simulated game world reality with the cheapest of decades old AMD technology hardware in a old mobile phone. you wouldnt believe how awesome my dolbyvision LGV60 is with its radeon RX630 in the snapdragon865 processor (adreno)