Hello @fbarrett, welcome to the Sonos Community!
I am sorry to hear you are having audio interruption issues while listening via AirPlay / Spotify Direct / Tidal Connect to your Sonos system.
I recommend you to do a network refresh, by rebooting all networking devices involved. Start with your router → Sonos → controller (smartphone / tablet).
If you are still experiencing audio drop outs, please Submit Diagnostics within 10 minutes of them occurring and then reach out to our Support Team for live troubleshooting.
They have tools at their disposal to provide you with information and advice specific to your Sonos system and what it reports.
I hope this helps.