How can I get my video to use 4:3 aspect ratio for HD video?

Is there any way to get My Video to use an aspect ratio of 4:3 when using HD?

Here's a video showing the issue:

https://youtu.be/n5kkvlHQnKQ

I did some web searches and this camera is popular for streamers, so the answers I saw were frequently about how to do this with OBS. It appears that it's just a software setting and has nothing to do with hardware.

macOS 10.15.1 (19B88)

RingCentral Meetings version: 19.4.151912.1206

Webcam: Logitch HD Pro Webcam C920