Go to the Wallet page and tap the icon (▾) next to your wallet name.

Select the wallet you want to backup, then tap Backup Manually.

Authenticate with biometrics if prompted, and tap all the checkboxes to acknowledge the importance of saving your seed phrase.

Your seed phrase will be displayed in order (e.g., 1. poem, 2. giant, …). Write down the words exactly as shown.

Tap Continue once you have recorded your seed phrase, and store it securely.