So I ranted here: https://en.community.sonos.com/home-theater-228993/its-2016-make-playbar-gen-2-for-dts-fix-aux-for-play-5-gen-2-6735204/index2.html
about 2016 issues. This was on top of what I saw from other people. Well, it's now the day. It's a massive ebay sale along with Alexa.
I bought 4 google home's, 2 x Sony (HT-ST9 - with google cast built in), 3 audiocast dongles, dumped apple music in favor of sonos, and it all work's. It's truly multi-home. I created zones and now my google home projects music where I want it, how I want it, in overlapping zones if required. The last insult was the release of the playbase with optical only support. Just had to post to let you know that I would follow up on this. Sony is embracing updating their tech through software with google home (shocking, but you might as well trade spots with them).
Best of luck and good luck!