Airplay
Is the Airplay app automatically installed on my iphone 11?
If not can I get it from the App store?
iPhone 11, iOS 16
Airplay is not an app, it is a feature in control center. Swipe up on your iPhone, and then tap AirPlay. Then select the TV you wish to stream to. For more help visit Use AirPlay to stream video or mirror the screen of your iPhone, iPad, or iPod touch - Apple Support