Nothing fixes intermittent cutting out

I read many threads on here about issues when various Sonos groups/speakers are played simultaneously. Everyone always says “it’s the network.” I had an older google mesh system putting out 100mb DL speeds and 10mb UL with a latency of about 25. Alas, because I listened to the people here, I bought a WiFi 6 eero mesh network thinking the community knew something I did not. The internet speeds went up to 250mb dl/10UL and 21 latency. But the problem didn’t go away. None of my other devices in the house have any glitching issues. I can stream UHD TV with no stuttering, but somehow my Playbar and two play:1s surrounds can’t keep a music signal going.

I am at a loss and have spent so much money and time trying to fix this. I know people say to try unplugging the the Playbar, but yesterday the power in my house went out so all the Sonos devices automatically restarted. 
 

What could possibly be left?