1. Background audio API for streaming music playback.
2. Background Bluetooth Audio Playback (w/Bluetooth Channel Hidden)
3. Bluetooth HID Keyboard/Remote Pairing Support for Sofa-baton and Harmony command/function keys. (Especially for Soundbar Pro!)
4. Chromecast Built-In Support. (The Matter Alliance has a TV Casting aspect of their spec too).
5. Matter Alliance control support for Roku sets/sticks/soundbars AND for general home device control far beyond just rebranded Wyze branded products. (I have Hue and Lutron lights. No way am I buying Roku branded smart-home products at this point!)