Apple has tried talking around the issue and even shown Apple TV screenshots, but it is now clear that the new HomeView cannot play Apple TV or other video apps unless there is a CarPlay app for it. You would be forgiven for assuming you can watch Apple TV on HomeView, but Apple sidesteps explaining how.
HomeView initially looked great if you only wanted Apple's own apps, but now it seems you aren't getting all of those. Four Apple apps must be run on an iPhone instead: Apple TV, Apple Books audiobooks, Apple Music Classical, and Apple News+. The first three appear to be sent from the iPhone to HomeView via AirPlay. It is unclear whether Apple News+ can be seen directly on HomeView or will only be read aloud by Siri.
Apple has chosen not to allow any third-party apps, which limits the device further. The lack of an App Store was already a questionable decision, and now HomeView seems even more restricted. Apple's description says the device keeps you engaged with music, podcasts, audiobooks, TV shows, and more, yet audiobooks and TV are not actually on HomeView, nor is the classical part of the Apple Music subscription.
There is no clear reason for the omission. This is not a safety issue like it can be with CarPlay, and Apple is using CarPlay as the API for HomeView rather than any hardware deficiency, since HomeView's A18 chip also powers the iPhone 16, which has a native Apple TV app. Rather than full apps, HomeView runs widgets like CarPlay, and the Apple Music widget can play music without launching the app. Given this, HomeView's functionality appears quite limited, and it will be interesting to see how CarPlay functionality is adopted over time.
Source: AppleInsider · Summarized by HeadlinesBriefing