Apple has updated all of its operating systems, adding the Freeform digital whiteboard app, support for Advanced Data Protection for iCloud, Apple Music Sing, Stage Manager on external displays, and various smaller improvements. A fix for a serious security vulnerability encourages updating soon.

The results are in and wow, do people not use a lot of Apple’s features. In fact, only 4 of 20 features garnered more votes from those who used the feature than those who didn’t. Some of the usage patterns are no surprise—SharePlay, really?—but others caught us off guard.

In its ongoing effort to protect users’ privacy, Apple has built a series of related technologies into macOS 12 Monterey, iOS 15, and iPadOS 15. Unfortunately, they can cause network connectivity issues, such that you might want to disable one or more. Here is how we think they work.