I think it was something to be voted on, but I may be wrong…might be before voting was implemented. Anyway, coming from Sonos I was baffled that I could not control the volume of a device with the hard buttons on my phone. I remember many posts asking for that, myself included. It did finally get implemented. So I think at least one other request voted on got rolled out.
As for ARC, why bother it is just so terrible. I’m a software developer by profession. If I released something like that I’d be embarrassed for me and my co-workers. Zero functionality on my end.
Well done on Volume control. Not sure one out of XXX is something to celebrate.