alt Hacker NewsQuoting things I only heard about, because I don't do enough development in this area, but I recall reading that it impacted performance on pretty much every mobile chip (discounting Apple's because there you go through a completely different API and they got to design the hw together with API).
Among other things, that covers everything running on non-apple, non-nvidia ARM devices, including freshly bought.
After going through a bunch of docs and making sure I had the right reference.
The "legacy" part of Vulkan that everyone on desktop is itching to drop (including popular tutorials) is renderpasses... which remain critical for performance on tiled GPUs where utilization of subpasses means major performance differences (also, major mobile GPUs have considerable differences in command submission which impact that as well)