What's the current best whole home audio setup that doesn't locks you into a specific brand/product line? Must work on iOS/Android/PC, sorry AirPlay. I'm okay with smart dongle-y things that don't fit the criteria so long as they could run on a set of passive speakers. Because if they turn to shit I just pitch them.
I'm not going to lie, the UX is kinda terrible compared to Sonos, but it means not paying Sonos, and it's functional. Not that Google hasn't done bad things in general, but in this area Sonos is the bad actor, which is why I chose this ecosystem despite the downsides.