Apple has announced that it is disabling SharePlay in developer beta 6 for iOS 15, iPadOS 15, tvOS 15, and macOS Monterey. The feature won't be available in their respective initial releases either.
Ipados 15 RSS
Along with iOS 15, Apple showed off iPad-specific improvements coming to iPadOS 15. These include home screen improvements, multitasking additions, new Notes features, and much more.
The next major update to Apple's mobile operating system is said to include multiple notification modes that change their behavior based on the user's status, as well as improved widgets on iPad.