All these tools are presented in your System Menu.
You get a timer function, an alarm clock, a tool to enable you to download a video streaming in your web browser and much more. There are archive management tools and the ability to manage your desktop, right in OS X. For example, the new and hugely updated Screenshot tool supplied with Mojave makes it really easy to get the grab you want.
Most of them appeared to be built into Mac OS directly and simply made them more accessible. When Parallels released their Toolbox with Parallels Desktop for Mac, we were relatively indifferent and very rarely used the supplied tools. Having quick access to key workflow tools can help you get your work completed more swiftly.
