Hello @frozen-sea, these look like some lines of interest from your log:
err:vkd3d-proton:vkd3d_dxil_log_callback: dxil-spirv: Unimplemented DXIL opcode 50
err:vkd3d-proton:vkd3d_dxil_log_callback: dxil-spirv: Failed to emit instruction.
err:vkd3d-proton:vkd3d_dxil_log_callback: dxil-spirv: Failed to convert function.
warn:vkd3d-proton:vkd3d_compile_shader_stage: Failed to compile shader, vkd3d result -3.
warn:vkd3d-proton:d3d12_pipeline_state_init_compute: Failed to create Vulkan compute pipeline, hr 0x80070057.
Same crash apparently happens in the other game that currently has FSR3: Forspoken. Fixed in vkd3d-proton master: https://github.com/HansKristian-Work/vkd3d-proton/issues/1717
Edit: Have tested the fix and can confirm it works.
Compatibility Report
System Information
I confirm:
steam-2009100.log
Symptoms
Crash after intro videos.
Reproduction
Go to Settings and enable FSR3 Frame Generation, the game will freeze and eventually close. Any subsequent attempt to start it will crash after the intro videos. Not sure how to un-reproduce, deleting compatdata and verifying game files doesn't do the trick.