Hi, i want try FSR4 with my 9070XT. I installed mesa-git from https://github.com/chaotic-cx/nyx

I see VK_EXT_shader_float8 vulkan extension Mesa 25.3.0-devel

I installed Proton GE 10 V10 and run Steam game with FSR4 support with launch command

PROTON_FSR4_UPGRADE=1 PROTON_ENABLE_WAYLAND=1 PROTON_ENABLE_HDR=1 %COMMAND%

But the option doesn't appear. Same for optiscaler. I want to know if you have idea about it

10653.005:016c:0170:err:amdxc:AMDFSR4FFX_UpdateFfxApiProvider Failed to load FSR4 dll (amdxcffx)!