Strange, the same thing here, but only for audio, video streaming works fine.
Especially bad when streaming using Tune In radio, drop outs every now and then.
Spotify works fine most of the time, but only when I start streaming to my multiroom setup from a Google device, starting from a Lenovo device often results in stopping the music permanently.
First, I suspected my WiFi coverage was bad, so I walked around the floor using Heatmapper and, as a result of that, bought a new repeater to create a mesh.
Now, the coverage is really fine, but the problem remains.
Also, I messed around with WiFi settings and frequencies.
In your case, be aware that some Zigbee channels can interfere with 2,4GHz WiFi.
So maybe try using 5GHz if the range and signal strength are sufficient or try using fixed channels 1, 6 or 11 for 2.4GHz.
The only alternatives coming to my mind are Amazon or Apple.