For some background on seed phrase vs private key.
The seed phrase (stored in your phone’s secure enclave) generates your private key only at the moment of signing a transaction. To do so, users will need to use their passcode or biometric access to access the seed phrase.
It does NOT preserve the private key beyond signing the transaction, so it is not possible to read your private key from anywhere.
In the settings menu, users should “Back up this wallet”, and write down their seed phrase to store in a safe place.