I believe you're looking for copies (e.g., AMZN Web-DL, BDMV, or Remux) of Superman & Lois Season 4 .
If you meant "lossless audio" (e.g., E-AC3 5.1), most Web-DLs include that. For true lossless (TrueHD or DTS-HD MA), you'll need the Blu-ray release (likely 2025). superman & lois s04 lossless