Since I am on it I also ran the Rise of the Tomb Raider Benchmark using the native Linux version made by Feral Interactive against the Windows version using Proton Experimental. While the Windows version was ran using DX11 and DX12.

Preset: Very High
Resolution: 2560x1440
Anti-Aliasing: FXAA

Linux Native:

Mountaintop: 230.87 FPS (min 112.78, max: 410.66)
Syria: 182.56 FPS (min 66.97, max: 273.90)
Geothermal valley: 175.96 FPS (min 135.32, max 210.32)
Overall: 197.12 FPS



Proton Experimental: experimental-9.0-20240328c
DirectX 12:
DLSS: Off
VKD3D-proton: vkd3d-1.1-3973-g21008d5c

Mountaintop: 184.08 FPS (min 85.91, max: 277.11)
Syria: 148.56 FPS (min 19.38, max: 199.62)
Geothermal valley: 144.39 FPS (min 3.22, max 191.18)
Overall: 159.56 FPS



DirectX 11:
DXVK: 2.3.1-3-g855b2746

Mountaintop: 210 FPS (min 132.30, max: 298.29)
Syria: 169.17 FPS (min 63.93, max: 226.95)
Geothermal valley: 160.54 FPS (min 114.01, max 187.77)
Overall: 180.66 FPS



Conclusion: Similar to Shadow of the Tomb Raider Feral Interactive pulled of some serious performance benefits using the native Linux version compared to the Windows versions running via DXVK or VKD3D.
Also I find it noteworthy that while Rise of the Tomb Raider offers a DirectX 12 mode it seems to be in some early stage as it performed the worst here. Also the min fps are very concerning as they are very low. Which to me looks like some issues with the DirectX 12 renderer.

System:
OS: openSUSE Aeon (Kernel 6.8.4-rc1)
CPU: AMD Ryzen 7 7800X3D
GPU: nVidia GeForce RTX 3080 (Driver: 550.67)
RAM: 16 GB DDR-5 + ZRam
DE: Gnome 46 (Wayland)