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"This exists because the macOS Dock shows apps but not how windows spread across desktops and displays."

A Dock-replacement taskbar for macOS that groups windows by desktop, with thumbnail previews, pinned apps, notification badges, and one-click desktop switching.

Our takeWorth a look if you run a lot of Spaces and keep losing track of windows. 14-day trial, then a one-time $29.99 or a cheap yearly plan. A paid utility, but a focused one.