Duress makes all data unrecoverable. The entire disk on Android OSes are encrypted and duress instantly wipes the Secure Element and SSD encryption metadata. Data on the Secure Element is one of many parts that derives the credentials to decrypt data.
FBE on Android provides separate encryption credentials for profiles, so deleting a profile deletes all data on it permanently.
See this article for a detailed overview: https://osservatorionessuno.org/blog/2026/05/demystifying-phone-unlocking-tools-a-technical-overview/
