Hi!
Welcome to Microsoft Q&A forum.
You are correct, this is a Windows 11 / Realtek driver behavior change, not a hardware issue.
You can check a specific setting for realtek or audio processing.
- Press Start → type “Realtek” → open Realtek Audio Console (or “DTS Audio Processing,” “MaxxAudio,” or similar).
- Go to the Device advanced settings (often a gear in the upper-right corner).
- Look for:
- “Enable auto popup dialog when device is plugged in”
- “Automatically switch playback device when headphone is plugged in”
- Turn that option ON.
- Reboot your PC, plug in your headset, and test.
Let me know once done so I can assist you further.
Note: There would be cases that this setting cannot be found (notify me since that is a special case if settings is not found)