SharePlay didn‘t make it to iOS 15, but will be a later feature in iOS. If you‘re developer you can test SharePlay by installing the SharePlay Beta Profile.
isthismarvin
Users receive reputation points by contributing quality content to the forums.
Posts include post and replies published on the forums.
Post authors can mark replies as Accepted to indicate successful solutions.
Apple Developer Forums admins can mark replies as Apple Recommended to indicate an approved solution