Your logs show Symfonium requesting Opus at 192 kbps, so this attempt is requesting transcoding. Please check the Wi-Fi maximum bitrate setting and retry with no bitrate limit.
The player cannot recognize the returned stream, and several tracks have only 182 bytes cached. This suggests an error response instead of audio, but the logs don’t contain that response’s contents.
Please check the Navidrome logs while reproducing the issue and share the corresponding stream/transcoding errors. Let me know whether playback works with the bitrate limit disabled.