It is 2.1 but I replaced as it didn’t have eARC to go with my Sonos soundbar.
You’re better off starting a new thread with the features you want but don’t get hung up on viewing distances, go for picture quality and functionality.
If you buy it from Sonos PM me as I can give you a 15% code through my bluelight card.
The ARC soundbar is ok for films etc but I prefer the sound for general TV through the Phillips builtin speakers. The ARC tends to muddle speech and add bass to audio (then again I’m mutt & jeff)
Has just decided to lose the DLNA app in the last month for some reason that I can’t understand, straight after I repurposed the Kodi Pi that was running into it. The network connection is still there so I can only assume that some update has decided to get rid of it for some reason.