Power Display flyout doesn't respect playback status of some monitors

### Microsoft PowerToys version

0.99.1

### Installation method

PowerToys auto-update

### Area(s) with issue?

Power Display

### Steps to reproduce

1. Disable audio playback for a monitor in Control Panel / Sound / Playback tab. Click OK or Apply
When complete, playback status for that monitor will show "Disabled"

2. Open Power Display flyout: (Win + Ctrl + Shift + P)
Notice the error: there is a volume control for this monitor. This should not be the case since audio playback has been disabled.

The attached screenshot shows the Sound dialog and Power Display flyout in this error state.

### ✔️ Expected Behavior

In the Power Display flyout, a volume slider won't display for a monitor that has playback disabled.

### ❌ Actual Behavior

In the Power Display flyout, a volume slider displays for monitors that have audio disabled.

### Upload Bug Report ZIP-file

[PowerToysReport_2026-05-08-09-48-28.zip](https://github.com/user-attachments/files/27527985/PowerToysReport_2026-05-08-09-48-28.zip)

### Additional Information

Edition Windows 11 Pro Insider Preview
Version 25H2
Installed on ‎2/‎28/‎2026
Evaluation expires on ‎8/‎11/‎2026 1:09 PM
OS build 26220.8340
Experience Windows Feature Experience Pack 1000.26100.366.0

### Other Software

_No response_

No file or test is named in the issue. Start by locating the Power Display flyout and the code that determines whether a monitor exposes playback controls, then reproduce the disabled-monitor scenario from the steps. Done means the volume slider is absent for monitors whose playback status is Disabled while remaining available for enabled playback.

Written by the indexing model from the issue text.