They might miss out on the convenience of AirPlay, though. AFAIK you cant do DLNA streaming to the Apple TV.
AirPlay really bridges the gaps for me, wrt having any app available on my tv at any time.
Combined with steam connect, it’s a decent multi use box with solid, non-intrusive updates. Just wish the garden wasn’t so unnecessarily walled.
I have a Soda Stream and use powders. The trick is to turn your powder into a “syrup” first.
Mix your powder with 1-2 oz of water, stir it well (I use a hand held milk frother), and then put that into your bubbly water.