I mean, it does work pretty similar to the windows task bar? If an application is open, it is listed there in the dock with a mark under it. You can pin applications to the dock or remove them via right clicking it. Right clicking on one will provide a list the windows which are open to which you can select from, as well as a "show all windows" option which will hide everything else, and visually show just the windows for that application (you can also just force-click on the app icon to do this).
The only difference I see is that the windows taskbar provides a preview thumbnail when hovering over the icons. In which case, there's apps you can get for that.
The big difference for me is that there is no way to quickly jump between multiple windows of the same application. I often have multiple different projects open in vscode and would love a way to switch between them without having to right-click and selecting one from the list. All I want is something like the windows taskbar with auto-grouping disabled.
The only difference I see is that the windows taskbar provides a preview thumbnail when hovering over the icons. In which case, there's apps you can get for that.