It's odd how their Linux support documentation is so lackluster. I have an RX 6800 that runs stable diffusion fine with recent PyTorch on Linux, but looking at their Linux support info you wouldn't think this was possible.
The situation (afaik) until a day or so ago was that Linux had official support for datacenter and "pro" cards and unofficially for consumer cards while Windows had nothing.
Considering the dev hours that must go into this it seems odd they don't have better release info, frankly.