Zoom client consistently crashes (~70% of the time) when joining meetings

I've reproduced this on two distinct Arch systems and it's been happening for at least six months on both, so I don't think this is a hardware issue.

I'm using Arch Linux, fairly up-to-date, with Plasma Wayland and Pipewire. I'm using the zoom AUR package (version 5.12.9-1 as of opening this issue, but it's been happening since at least 5.8.x). Most of the time when I join a meeting the client will briefly display the grid of video feeds, sometimes I get a fraction of a second of audio, and then the client crashes. Sometimes it does work, and then it works fine, but that's after the initial join. Which usually doesn't work until the third or fourth or sometimes ninth try. Which sucks. It's especially annoying in meetings with a waiting room, where I have to wait in the waiting room only to be let in and then the client crashes.

Here's a coredump (compressed with zstd -> gzip, 934MB uncompressed) and a stack trace from a failed join.

flathub / us.zoom.Zoom

Zoom client consistently crashes (~70% of the time) when joining meetings #359