Where many steam games where tried live and debugged to run FEX + wine + Asahi GPU driver through its paces. Highlights include Portal working, Fallout NV working. Crysis running with graphical artifacts and lots of other games. The main limitation currently is simply GPU driver feature support. To run modern D3D12 games you basically need Vulkan which Asahi GPU driver doesn't support yet.
Sounds like the OpenGL work can mostly be reused for improving the Vulkan driver and sounds quite promising.