Even more progress towards having a layer that will translate Direct3D 12 nicely over to Vulkan, as the VKD3D-Proton project just had a fresh release out. This is the official project for Valve's Steam Play compatibility layer Proton, with performance and compatibility with Windows games running on Linux as the main focus.
The VKD3D-Proton 2.3 release headline feature is early support for DXR (DirectX Raytracing), with it being hooked up to the newer vendor-neutral Vulkan Ray Tracing support. They say the current DXR compatibility is a work in progress "but it is good enough to run some real content". It's also NVIDIA only right now, as they're waiting for AMD drivers to catch up and the recent Radeon Software for Linux 21.10 does not work. Games that work include Control and Ghostrunner.
Additionally there's also support (tier 3) for conservative rasterization, support (tier 2) for variable rate shading, various bug fixes, significant performance improvements for Horizon Zero Dawn and Death Stranding, Resident Evil 2 should see up to 20% better GPU bound performance with NVIDIA and more.
Overall a pretty impressive release.