Apple has made an important change to Voice Memos to improve privacy, encrypting their titles when stored in iCloud.
Apple announced the change in a support document:
Starting in iOS 17, iPadOS 17, and macOS Sonoma, Voice Memos encrypts the titles of recordings stored in iCloud, in addition to the recordings themselves. Because of this change, Voice Memos may display the date of the recording, rather than the previous title, on devices with older software.
The change is a welcome one for Voice Memos users.