The iOS 18 update introduces the Photos app with the ability to pin albums for easy access.
Pinning an album places it in the Pinned Collections widget at the top of the Photos app.
To pin an album in the iOS 18 Photos app: Open the app, scroll to Albums, long press the desired album, tap Pin, and then find it in your Pinned Collections.
This feature allows users to keep frequently accessed albums readily available in the app.