Macbook 15,1 frequently crashes during video chat. How can I debug this?

Frequently, and for no apparent reason, my Macbook Pro 15,1 (15-inch, 2019) with macOS 10.14.6 freezes, then hard-crashes during video chats (hangouts, slack, FaceTime). I have not seen this problem during regular video playback (Youtube, VLC). The error report is attached at the bottom. I had hoped it has to do with integrated graphics switching, but turning it off didn't prevent it from happening. Can someone parse some useful info from this crash report? https://pastebin.com/raw/9zTnntxv (too large to paste here, unfortunately).