It looks like two separate issues are occurring after cumulative Windows 11 updates: (1) device‑specific settings for your Plantronics/Poly headset being reset, and (2) multi‑monitor wallpaper configuration reverting to a single stretched background.
Both behaviors can happen when updates refresh certain registry keys or reapply default device profiles.
Here are a few things you can try to keep your settings persistent across updates:
Headset configuration: Install the latest version of Poly Lens (desktop app). It stores device settings in its own profile, which helps prevent Windows Update from re‑enabling default features like the sensor hang‑up option.
Audio device priority: In Settings → System → Sound → Advanced → More sound settings, set your preferred input/output as “Default” and “Default Communications Device”. This reduces the chance of Windows switching devices after updates.
Wallpaper persistence: In Settings → Personalization → Background, set each monitor manually using “Choose your background for each display”. If Windows keeps resetting it, you can create a local wallpaper policy using: gpedit.msc → User Configuration → Administrative Templates → Desktop → Desktop → Desktop Wallpaper. This prevents updates from overwriting multi‑monitor layout.
Optional: You can also pause non‑critical updates using Settings → Windows Update → Advanced options → Optional updates, so only security updates apply automatically.
These steps don’t disable updates, but they help keep your device and display configuration stable across them.
Let us know if any of these help or if the issue continues after the next update.