Mesa RADV driver on Linux looks set for a big ray tracing performance boost

Should provide a ~4x-8x speedup in UE5’s HW Lumen passes, amounting to ~30% total FPS gain in my coarse measurements.

Pretty significant improvement, and UE5 games definitely need all the help they can get. I’ve taken to disability Lumen in most UE5 games (usually through a modified engine.ini file) because the performance hit is so bad for so little visual improvement.