Sound is fading out even when I have unfocused sound on 100%.

Hello, I can not reproduce this issue. Could you upload your config file to see if that'd help diagnose the issue?

dynamic-fps-3.6.1+minecraft-1.20.0-fabric
{
"idle": {
"timeout": 60,
"condition": "none"
},
"states": {
"unfocused": {
"frame_rate_target": 0,
"volume_multipliers": {
"master": 1.0
},
"graphics_state": "reduced",
"run_garbage_collector": true
},
"abandoned": {
"graphics_state": "reduced",
"run_garbage_collector": true
}
}
}

Well that also did not help. Are you sure that the volume is actually changing (and not just cutting out for a brief moment when you tab out)? Or are you minimizing the window because then you'd need to configure the Invisible state to have no volume.

Well that also did not help. Are you sure that the volume is actually changing (and not just cutting out for a brief moment when you tab out)? Or are you minimizing the window because then you'd need to configure the Invisible state to have no volume.

I was minimizing yes, now it works.

That's good to hear!