Minimum system requirements for SharePlay
iPhone with iOS 15.1
iPad with iPadOS 15.1
Mac with macOS 12.1
Apple TV with tvOS 15.1
On a device with iOS 15.4, iPadOS 15.4, or later, you can start a FaceTime call in the Music app (or other supported music app) or the Apple TV app (or other supported video app) and use SharePlay to share music or video content with others on the call.