Microsoft has released Windows 10 Insider Preview Build 18922 (from development branch 20H1) for Windows Insider in Fast Ring. Microsoft is working on the Feedback Hub and the Language Settings page.
The announcement with details about new features/changes and bugs can be found in the Windows Blog. This build provides improvements to the language settings options.
They claim to have optimized the feedback hub, there are a few fixes – and a long list of known issues.