Earlier quoted context omitted.
Apple airplay works flawlessly. Or you can buy an old Amazon fire and connect them to your own hardware. Both of these solutions allow you to use any speaker/amp setup you choose. And if you truly care about sound quality, this is the only path.
In my experience AirPlay 2 isn’t flawless, pretty much every time I try to use it there are stutters. This is using an iPhone 16 Pro to AirPlay to a stereo pair of Sonos Five’s that are connected using Ethernet. AirPlay isn’t a great choice if you are concerned about audio quality anyways - if you’re using AirPlay 2 you’re using 256kbps AAC, so it should sound the same as Bluetooth (or worse if you are comparing some…
Sonos never wanted to work with Apple, so I can understand why they'd never make it work.