Qwen3.8 125B (6B active) Flash-Next

User reports Qwen 3.8 Flash Next at 66.55 tok/s decode on a Ryzen AI Max+ 395 / 8060S Strix Halo 128GB under WSL2 on Windows. Setup uses a 260k-token context; prefill measured at 790.92 tok/s in a separate shorter-output run. Two full 260k sessions ran at 25.45 tok/s each, 50.90 combined, with no aggregate speedup over solo. Windows idle usage is 9-12 GB including Codex; the two-session run left at least 18.86 GB available. Three full contexts froze the PC.