Leandros_Adigard yes and no. As long as the Zoom flatpak works, sound works fine. When for some reason the flatpak doesn't work properly and I run Zoom through the web browser, it has the problem after suspend/wake or longer periods of inactivy. Using caffeine doesn't seem to effect it, it seems to have to do with interaction with the chrome browser.
I'm going to try having them use Firefox instead and see if the problem presists. Unfortunately, it's during school when it happens, so I can't take the time to grab screenshots and run terminal commands to troubleshoot properly. It's get some audio back (using Bluetooth headset) ASAP so they can finish class. And of course, the kids always shut the pc down when they're done, so reboot and errors are gone.