Airplay audio delay

Say, I'm watching youtube videos. I play the audio on an Airplay Bose speaker and the video on a regular computer monitor (connected via HDMI). The audio and video sync each other. Very nice.

But eventually the audio gets out of sync. As long as I play a single video, this never happens. But, when I start to watch another video, sometimes the audio gets out of sync. Once this happens, audio and video stay out of sync until I restart the machine. Synchronicity never returns until then. Very annoying.

Is there any easier solution?

mac min (late 2020) with macOS 11.4 (always up to date).