[okanat]

> Does this mean that on other or older distros, they might not work

Yep exactly. While Vulkan API is well defined and mostly stable, there is no guarantee in Linux implementation will also be stable. Moreover Khronos graphics APIs only deal with the stuff after you allocated a buffer and did all the handshakes with the OS and GPU drivers. On Linux none of those have API / ABI / runtime configuration stability guarantees. Basically it works until only one of the libraries in the chain breaks the compatibility.

[account42]

This is BS. Vulkan buffers are allocated with Vulkan functions. Window system integration is also provided by window-system specific Vulkan extensions just like it was with WGL/GLX/EGL etc. These are all well defined and stable.