Dumb q but did you ever have apple tv -> tv -> sonos soundbar set up in a way where you were able to control the sonos soundbar audio from the iphone remote app?
Yes, LC OLED to Sonos Arc. Works a treat. At one point the remote started malfunctioning and I had to cover the IR transmitter with tape, but otherwise extremely reliable. Remote on iPhone works fine to control volume. The only thing is that if you add other Sonos speakers (say, in the kitchen as well as TV room) the mute only mutes the TV.
Yes, LC OLED to Sonos Arc. Works a treat. At one point the remote started malfunctioning and I had to cover the IR transmitter with tape, but otherwise extremely reliable. Remote on iPhone works fine to control volume. The only thing is that if you add other Sonos speakers (say, in the kitchen as well as TV room) the mute only mutes the TV.