Ooo, I wonder if they fight.
I note that Sonos are discontinuing the 'play from my iDevice' feature which is a tad annoying as that's what I usually did*, in favour of Airplay. Airplay is one of those things that, when it works, works really well. But when it doesn't work, and it often doesn't, requires an entire festival of switching things on and off.
*I have three Sonos Ones, and two of the older Plays which don't have Airplay**, so to use Airplay you have to send the signal to a One and then use the Sonos app to group the dumber Play.
**which I didn't realise when I bought them.