Comment by exDM69

> look up the extension on vulkan.gpuinfo.org and see ... currently 0.3% of all devices support it.

Afaik the extension isn't even finalized yet and they are pre-releasing it to gather feedback.

And you can't use gpuinfo for assessing how widely available something is or isn't. The stats contain reports from old drivers too so the numbers you see are no indication of hardware support.

To assess how widely supported something is, you need to look at gpuinfo, sort by date or driver version and cross reference something like steam hardware survey.