Microsoft is implementing text suggestions for the hardware keyboard not just in the Chrome browser for Windows 10, but also for Chromium-based Edge (the incoming spin on Microsoft’s browser which uses Chrome’s engine).
This means that as you’re typing in either browser – wherever that may be, for example in the URL window or Chrome’s omnibox – suggested words will pop up as you type, and you can use these by clicking on them, rather than having to manually tap them in.