Zoom keeps changing its output audio volume

I'm on Ubuntu 20.04, using the Zoom 5.5.4 client (but I experienced the problem with previous versions as well). More often than not (but weirdly enough not always), whenever I start or join a meeting, Zoom keeps changing its output audio volume. Most of the time, it is turned down to around 5-10% and I need to open my volume control to adjust it back before I can hear people.

In the Zoom settings I only see an option to prevent the input volume from being automatically adjusted, but that is not what I want...


Solution 1:

Apparently, unchecking the option "Automatically adjust microphone volume" does solve the problem, even though it's not the microphone volume that is the culprit.

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At least for me, that is how I got rid of the problem.