Re AirPlay and Chromecast et al
"Centralised availability: Apple shall allow third-party casting providers to centrally provide their casting solution on iOS, e.g., through an extension, such that end users who install the casting solution can access the third-party casting provider in any third-party app that uses standard media playback APIs without the need for the third-party app developer to integrate an SDK in their applications.”
"For the purpose of ensuring that effective interoperability continues in the future, third parties must also have access to any future feature functionalities and updates of the media casting feature insofar and as soon as they are available to Apple’s AirPlay. For example, if Apple updates AirPlay to stream video at higher resolution, or to allow end users to initiate screen mirroring via an AI assistant, these updates should be made available to third parties as well.”
Again 2025 deadline