There is a flatpak zoom app. I guess it can be sandboxes somehow. It would most likely not pose any privacy threat outside of zoom.

But keep in mind that zoom got into it's privacy policy, that they can record and use for ai anything you do and say during a meeting (if you didn't allow access to the desktop during the meeting, zoom shouldn't be able to record it, so most likely won't matter for that, only what you send through their servers).