When I use App Exposé on my Mac, I see multiple windows (?) on the desktop: One with the application's main window itself and a few others that look like the background of a task entry where I can enter details such as description, details, task, time etc.; see attached screenshot.
I can't remember having seen anything similar under macOS 15 so I assume it's something specific with macOS 26.

WorkingHours version: 2.13.5
OS + version: macOS 26.0.1 (Tahoe)
Device model: MacBook Pro M2