It also appears that users will not be able to choose the default browser or search engine, meaning Microsoft is pushing folks to use Bing on Edge. It will be possible to install a different browser via the Windows Store, but links will always open in Edge. Perhaps someone will figure out a register hack to enable this feature, but the regular configuration dialogs of the Windows 10 S operating system will not allow you to change these settings.
Furthermore, your choice of browser will be limited as not every vendor has a Windows Store version. You can find Firefox in the Windows Store but Google's Chrome is not available via this format.
Until the end of the year, Surface Laptop buyers will be able to upgrade to Windows 10 Pro free of charge. After that, users will need to pay a fee of $49 to upgrade if they want to get rid of all these restrictions.