Apple TV — with the Apple TV app, Apple TV+, and Apple TV 4K — puts you in control of what you watch, where you watch, and how you watch.
How to set up Steam Link on iPhone, iPad, and Apple TV An iPhone or iPad running at least iOS 10 or an Apple TV. A host iMac or MacBook, or a PC running either Windows or Linux. Whatever the system, Steam needs to be installed as well. How To Stream From Mac To Roku Oct 09, 2017 How to AirPlay to Apple TV on iPhone, iPad, and Mac | iMore
How to use the Apple TV app for Mac | iMore
Apple TV — with the Apple TV app, Apple TV+, and Apple TV 4K — puts you in control of what you watch, where you watch, and how you watch. How to Stream From iPhone or iPad to Your TV
Stream content with Home Sharing on Apple TV - Apple Support
The TV apps on Mac, iOS and iPadOS might not support Chromecast, then you can use this streaming protocol rather than an Apple TV box to watch Apple TV+ content on the big screen. Just tap the Apple TV+