Many of these features Windows has no analogue for. Consider:

> By default, clicking inside a scroll bar will scroll partially towards the clicked location. Hold Option while clicking in the scroll bar to jump directly to the clicked location.

There is no way to present this option in the GUI without cluttering up the scroll bar, so neither Windows nor macOS do so. But at least this feature is available for power users.

I admit that in places where there IS space in the UI (menu bar, right click), I find it odd that the option-variants are not listed unless option is actively being held.