isBackupEnabled

Check if Google Backup appears to be enabled on this device.

IMPORTANT: Android doesn't provide a reliable public API for apps to check backup status. The Settings.Secure "backup_enabled" key is not consistent across manufacturers (Samsung, Xiaomi, etc. have their own backup systems).

This method always returns false to ensure users see the backup reminder. The reminder is valuable even for users who have backup enabled, as it:

• Educates them about the importance of backup for wallet recovery

• Prompts them to verify their backup settings

• Can be dismissed with "Continue Without Backup" if they're confident

Check if system backup (Google Backup / iCloud) is enabled.