Recently, sound is cutting out momentarily while video is perfect

It used to be that in situations with poor internet connectivity, the audio would often come through while the video stuttered. That was good, because the audio is normally the most important thing.

Now, I'm on a line with > 100mbps and I have no problems with any service other than Zoom, but recently, I'm getting fairly frequent dropouts on the audio while the video remains perfect. First of all, given my generally excellent connectivity, I don't see why I should have any problems at all with Zoom. 

But secondly, I don't understand why Zoom would prioritize the video to such an extent that it is absolutely perfect even while the sound drops out completely for some seconds. (Frequently accompanied by a popup saying that my internet is "unstable".

Is there anything I can do to lessen the frequency of audio dropouts? This has only started happening in the last month or so.