Back in the days when I used to use windows, they way I navigate through the task bar was window key + app index (manually sorted). Same way i navigate through tabs in my browser. This, of course, can be my own ergonomic feature, but using a task bar without this feature feels clunky.
And since full-screen apps on MacOS work on different workspaces, and the bar is context-dependent to the workspace - this means that I have to choose to work on a maximized window or have it in my taskbar. It will be nice if there is an option to consolidate all the apps. Static, sticky, salad.
And damn, I used to pay $100-200 for an entire OS, now its $40 for a taskbar. - "Old man yells at inflated clouds"