Oh yeah, when I rebuild different versions of vulkansdk, it also builds a library file like libvulkan.so.1.3.250. So it wouldn’t be just changing the icd, it changes the underlying driver too, although it might use older versions of various components. At least that’s the way I understand it. So if Steam’s wine(-proton) has vkd3d-proton and dxvk statically linked, that leaves only vulkan(and nvidia). But I don’t know that yet. I build both 64 and 32 bit versions.
Thanks for helping me.