All of my voice recordings are gone after update
All my voice recording is gone after update on iPhone 8
iPhone SE, iOS 15
If you've a backup to iCloud, that may help. Or one on Mac/PC
with USB/Lightning cable; could be useful to restore backups.
• What does iCloud back up? - Apple Support
..Not certain exactly what gets over-written during iOS updates..
Mine always backed up w/ iCloud; that only uses 2.7GB.
Still have a little left over, from free 5GB Apple provides.
There may be something in your iCloud account to check.