To determine if you can use AirPlay and HomeKit with your Roku device, you need to know the software version and device model. To find this information, go to the home screen and select Settings > System > About.
The Roku devices listed below support streaming with AirPlay 2:
Axxxx, Cxxxx, CxxGB, 7xxxx
Roku Smart Soundbar
4800, 4670, 4661, 4662, 4660, 4640
4630, 4620, 3920
Roku Streaming Stick®+
To use AirPlay and HomeKit, your compatible Roku device must be running Roku OS 9.4 or higher. Your Roku device checks for an update every 24-36 hours or you can manually check for a software update if necessary.