Seems to have the same issues as the other software. After digging for a while seems that AMD changed the way their driver works for RDN3 cards and the zero rpm “feature” is not exposed yet to the kernel. There are some issues tracking progress but as far as i can tell AMD isn’t prioritizing the issue so who knows when this will be fixed…
In one of the gh issues someone fixed it by bypassing the vrm connector directly to the motherboard. In their model it was doable without having to disassemble anything. I don’t feel comfortable doing that so for now the only thing to do is wait…