Hello deepin Development Team,

As an active user of the Internal Testing Channel, I would like to report several issues and suggest improvements to enhance the system's stability and user experience. Please find the details below:

1. Taskbar Context Menu Rendering Issue (Regression)

• Problem: When right-clicking the Taskbar/Dock, the context menu flickers, and a noticeable black area appears below the last item in the list.

• Observation: This issue is specific to the current Internal Testing build and was not present in the Stable version.

• Attachment: I have attached a video demonstrating this glitch.

2. Incorrect Label in Alt+Tab Switcher (Inherited Bug)

• Problem: When switching between windows using Alt+Tab, the desktop is incorrectly identified by its package name org.deepin.dde-shell instead of "Desktop".

• Observation: This issue persists from the Stable version into the current Testing build.

• Attachment: I have attached a screenshot showing this incorrect naming.

3. Missing Search Bar Animation in File Manager (UX Inconsistency)

• Problem: The search bar in the File Manager lacks interaction animations when clicked/activated.

• Comparison: In contrast, the search bar in the Settings app has a smooth animation. This inconsistency makes the File Manager feel less polished.

• Attachment: I have attached screenshots comparing the two behaviors.

4. Notification System Limitations

• Missing Feature: There is currently no dedicated "Notification Center" or history log to view missed or past notifications once they disappear.

• Duration Issue: The display timeout for notifications is too short to read comfortably, and even after extending the duration in the settings, it remains insufficient.

• Suggestion: Please consider adding a notification history and allowing for longer or customizable display durations.

System Environment:

• Channel: Internal Testing

• Report Type: Bug Report / Feature Suggestion

Thank you for your hard work and for making deepin even better!