This policy setting determines the level that Microsoft can experiment with the product to study user preferences or device ...

This policy setting determines the level that Microsoft can experiment with the product to study user preferences or device behavior. A value of 1 permits Microsoft to configure device settings only. A value of 2 allows Microsoft to conduct full experimentations.

If you disable this policy setting, all experimentations will be turned off.

If you do not configure this policy setting, user can configure the "Let Microsoft try features on this build" option in Settings.