Cast to Sonos
Since setting up Sonos I now see my Sonos devices when I click the cast button in Plex, but they just respond "unable to connect to if I click. This doesn't seem to be mentioned anywhere as an option but to me, one of the benefits of Plex, beyond the media server is the consistent cross-platform app. I'd rather stay in Plex than use the Sonos app. If that's not possible it would be better if the cast buttons didn't show the Sonos devices as that just looks like something is broken with high WAF.