I'd love to see a review (maybe not as comprehensive, but a few games and cards) in Linux.
For the simple reason that, the Nvidia (binary) drivers are very similar between Windows and Linux (your DX9/10/11 games are being converted to Vulkan by dxvk, and the DX12 ones by vkd3d... but games that already use Vulkan will be using many of the same code paths in both.)
But for both AMD and Intel GPUs, the Mesa Gallium 3D drivers were essentially developed independently of their respective Windows drivers. So with some Vulkan games, you'd have side-by-side comparison just testing the drivers themselves, since in both Linux and Windows they have native Vulkan support. My understanding is the Arc Windows drivers are DX12 and Vulkan only, and DX9/10/11 games are run under a graphics translation setup, as they are in Linux. DX12 games would be native in Windows and translated to Vulkan in Linux.
This might give some interesting data points; my understanding is the Windows Alchemist/Battlemage drivers are "from scratch", while in contrast Linux has a new kernel-mode driver for Xe, Alchemist, and Battlemage (I guess Xe and Alchemist can also work with the previous kernel driver); while the user-mode stuff that actually implements OpenGL, Vulkan, OpenCL, etc. on top of that is the same surprisingly stable and performant intel 'iris' driver that supports about 10+ years of Intel GPUs, with of course support added for the new functionality of Xe/Alchemist/Battlemage. You'd of course want to update 'distro of choice' to most recent mesa drivers since this is new hardware. But testing a few games and cards would add some interesting data points.