Apple publishes news update stating that SharePlay won’t be available on platforms launch.
Starting with beta 6 SharePlay is disabled and won’t be available at iOS 15 launch.
In order to keep development, Apple profiles SharePlay development profile which allows development and testing of SharePlay on existing beta versions.
SharePlay has been disabled for use in the developer beta 6 versions of iOS 15, iPadOS 15, and tvOS 15, and will be disabled in the upcoming beta 6 release of macOS Monterey. SharePlay will also be disabled for use in their initial releases this fall. SharePlay will be enabled for use again in future developer beta releases and will launch to the public in software updates later this fall.Apple Developer
Profile download: SharePlay Development Profile
Apple Developer: SharePlay release schedule update
Developer:Use SharePlay Development Profile, if testing SharePlay.
QA engineer:Use SharePlay Development Profile, if testing SharePlay.
PM/DM:Communicate feature availability to stakeholders.