Microsoft has just released the Windows 11 preview build 22000.160 for Insiders in the Dev and Beta channel. This is a minor update that brings a new Clock app supporting the new Focus Sessions feature, as well as changes regarding estimates for how long a restart for updates will take place on your PC.
Unfortunately, Android apps via the Amazon App Store are still nowhere to be found, but maybe Microsoft still has some work to do before flighting them. Anyway, you can find the full list of changes, bug fixes, and known issues in the build 22000.160 below: