
When i was creating a new environment in Power Platform Admin Center, created using Dynamics 365 CE 30 days Trial, found a Preview (United States) Region available in it.
Seems like, If we create a new Environment with this “Preview (United States)” all the new Dynamics 365 CE features would be released to this region first.

Also, it is not allowing me to choose Enable Dynamics 365 apps.

Anyways, I did not find any documentation regarding this and will update this article, if i get any.