I've spent some time trying to sort this out. Here is what I've found.
My HTPC is able to play true 7.1.4 Atmos content via either JRiver or Kodi but not Netflix, I think... I checked and my Windows 10 build requirements are not the problem. That's obvious enough I suppose since Netflix is...
Hey Dave. The Windows 10 app most certainly does support 5.1 and there's even some [very limited] Atmos content available. As for remote control, I have no idea since I am happy to use a mouse in my environment.
True but the vast majority of my streaming is currently Netflix which generally looks and sounds excellent. If [or more likely, when] I diversify my content sources I would probably opt for a Roku.
I do all of my streaming on my HTPC which is, of course, rock solid. I know they're not for everyone but this is yet another example of how they can be invaluable.