Same issue as this one posted a year ago:
My Sonos system is a Sonos Arc with a Sub Gen 3 in the living room, 2x Play:5 in stereo pair in the dinning room and 2x Play:1 in stereo pair in the bedroom.
I am using Sonos S2.
Like mentioned in the linked thread, during playback on stero pairs, sound will stop on the left speaker, then comeback, and sometimes continue to cut out on one or both speakers. Sometimes songs will simply stop for a second.
Problem seems to happen with multi rooms or with stereo pairs.
Never had any problem with other music services.
Yes, I tried unplugging my system / re-authorizing account. Still, I don't have this problem if I'm using a different music service