Mute Google Meet's audio completely without muting the participants

In the Google Meet app, I want to watch the presentation of the meeting, but I don't want to *hear* anything. I can't just mute people because that will mute them for other participants. I can't seem to find an output mute control or volume control in the app itself. I tried turning the volume all the way down on my Android device, but the volume slider won't go all the way to the bottom. Even if I set my device to silent, it doesn't seem to affect Google Meet. How can I mute Google Meet's audio *output* completely? If it matters, the device is a Samsung Galaxy Tab A 10.1 (2016) (SM-T580).