As far using zoom in the context of the jws, just tape over your camera while using.
Here are some , but not all of the massive security flaws with zoom. A "regular non tech person" may not be able to "hack your camera" but a fairly novice "hacker could" especially after a quick research and implementation of a few tools on the internet readily available for the common Joe. Since I guarantee the wtbs has a top notch IT department , I would air on the side of caution. Caution not paranoia.
I said this in 2009 about web cameras, and I was vilified for it by the psychiatric facility that I got therapy from. One month later, they all had tape on their cameras, because it hit the news. Along with a huge apology letter to me. I almost sued the shit out of them. The only reason, ONLY, reason was because so many relied on their services. My attorney was angry I didn't press forward. Anyway, that was a little different but the premise is the same.
Another one of many articles on it.
https://securityboulevard.com/2019/07/zoom-spying-vulnerability-the-plot-thickens/