Different people use their computers for different things, and the latest tweak that Microsoft is testing will apparently help Windows start optimized for your preferred tasks. A post on Windows Insider Blog describes the updated out of box experience with this new screenshot (above) that asks what you plan to do.
For testers right now, if they see the screen, it will not change the configuration of their system, but from the instructions you can see the direction it can go. If you need a system for schoolwork, notes and collaboration notifications can be up front, a family PC can present the ability to configure multiple users at once, and players can have their own set of prepared options. If you are in the test group, it will appear when you reset and reinstall Windows from scratch.