@zverik
If you had a look into it, you would find that almost the whole thing is a combination of the Chrome embedded cef library, the Qt runtime, and the zoom binary itsself. I could consider that the well-known Flexnet license manager takes about 12GBs of virtual memory during its operations. Yes, a silly license manager, that one.
@gisgeek Yeah, but it's not about memory, but about disk space. Every browser is smaller.
Currently Zoom is the biggest app I have, at 652 MB. Second is Ansible (456), which I can understand.