For more information on the 51+ Starter F1 VM updated, be sure to check out the following resources:
When you boot F1 VM, you open a picture-in-picture or full-screen window running a completely clean version of Android. This secondary OS has its own storage, Google Play Services ecosystem, and system settings. Key Features of the Updated Version 51+starter+f1+vm+updated
The first boot usually takes 1–3 minutes as it sets up the virtual ROM. For more information on the 51+ Starter F1