According to Apple the number of third-party apps that include SharePlay support continues to grow, with big names like Twitch and TikTok involved. Personally I wasn’t aware that you could SharePlay music, a feature worth testing.
SharePlay, a powerful set of features for shared experiences while on a FaceTime call, has introduced new ways for Apple users to stay connected. With SharePlay support in Apple TV+, Apple Music, and Apple Fitness+ — as well as many of the most popular apps like NBA, TikTok, Twitch, Paramount+, and SHOWTIME — users can watch movies and TV shows, listen to music, or complete a workout with friends together on a FaceTime call. SharePlay extends to Apple TV so users can watch on the big screen while using FaceTime on iPhone or iPad. With screen sharing support, users can also browse the web together, look at photos, or show their friends something in a favorite app.Apple.com
Apple SharePlay currently works on iPhones and iPads, while Mac support is also coming soon.