If you are just using GNOME, KDE, or a web browser, you won't notice a thing. Most desktop environments still rely heavily on OpenGL or simple 2D acceleration.
: Ivy Bridge GPUs (found in 3rd Gen Intel Core processors) were released before Vulkan was finalized. They lack certain hardware features required for a "complete" implementation of the modern Vulkan standard. mesa-intel warning ivy bridge vulkan support is incomplete