Mind Over Mushroom (791800)

Produces a crash dump:
error.log and output_log.txt

steaminfo

Arch linux
kernel: linux-next-git 4.18.0
CPU: Intel Core i7-7700HQ
GPU: Intel Integrated Graphics
Proton: Steam built in

Interesting snippet from output_log.txt

Initialize engine version: 5.2.3f1 (f3d16a1fa2dd)
GfxDevice: creating device client; threaded=1
info:  Game: MindOverMushroom.exe
info:  DXVK: v0.64-58-g6a5ad8b
warn:  OpenVR: Failed to initialize OpenVR
info:  Required Vulkan extension VK_KHR_get_physical_device_properties2 not supported
info:  Required Vulkan extension VK_KHR_surface not supported
info:  Required Vulkan extension VK_KHR_win32_surface not supported
err:   DxvkInstance: Failed to create instance
info:  Game: MindOverMushroom.exe
info:  DXVK: v0.64-58-g6a5ad8b
warn:  OpenVR: Failed to initialize OpenVR
info:  Required Vulkan extension VK_KHR_get_physical_device_properties2 not supported
info:  Required Vulkan extension VK_KHR_surface not supported
info:  Required Vulkan extension VK_KHR_win32_surface not supported
err:   DxvkInstance: Failed to create instance
err:   D3D11CreateDevice: Failed to create a DXGI factory
d3d11: failed to create D3D11 device (0x80004005)
GfxDevice: creating device client; threaded=1
info:  Game: MindOverMushroom.exe
info:  DXVK: v0.64-58-g6a5ad8b
warn:  OpenVR: Failed to initialize OpenVR
info:  Required Vulkan extension VK_KHR_get_physical_device_properties2 not supported
info:  Required Vulkan extension VK_KHR_surface not supported
info:  Required Vulkan extension VK_KHR_win32_surface not supported
err:   DxvkInstance: Failed to create instance
Crash!!!

Start by reviewing the linked error.log, output_log.txt, and steaminfo for the Vulkan and D3D11 initialization failures on Arch Linux with Intel integrated graphics. No source file or test is identified, so the first step is to reproduce the crash and trace the relevant Proton graphics path; done means the game launches without the reported crash.