Google Family Link is a family sharing feature that is available on iOS 12.4.1 devices. The feature allows users to share photos, videos, and other files with their family members using the Google Photos app. However, it has been reported that the feature does not work with Apple’s latest iOS 12.4 update. It is possible that the bug was introduced in iOS 12.4 and has not been fixed yet, or that the bug is still present in iOS 12.4 but has not been reported yet. It is also possible that Google has not yet released a fix for the bug and will release a new update soon. If you are using Google Family Link on your iOS device, it is recommended that you update to Apple’s latest iOS 12.4 update as soon as possible to ensure that your family members can still use the feature properly.