Given a two year old bug against Mesa around slow initialization/start-up time for GTK4 on Intel graphics, prolific Zink developer Mike Blumenkrantz recently took to optimizing Zink's start-up time for this generic OpenGL-on-Vulkan driver implementation.
It looks like Intel will soon be submitting their first Xe Direct Rendering Manager (DRM) driver pull request to DRM-Next for mainlining this modern, current and future hardware focused kernel graphics driver to be added to the mainline Linux kernel
Similar to the Radeon RADV driver recently implementing software-based decoding for Adaptive Scalable Texture Compression (ASTC), the Intel 'ANV' Vulkan driver within Mesa has also now wired up ASTC LDR emulation.
For those using the stock kernel and Mesa drivers when running Ubuntu Linux, the upgrade from Ubuntu 23.04 to the newly-released Ubuntu 23.10 can mean some nice graphics performance improvements for Intel Arc Graphics users.