I hate the fact that it requires you to install the client for it to work.
The client randomly spikes in cpu usage while running in the background. Multiple times I've also had this issue where I'll try to right click the zoom icon in the system tray and quit zoom, causing it to hang and reach 100% cpu usage on one core.
I also don't like that on clicking on a zoom video call link sometimes the browser to client redirect works but sometimes it doesn't and you need to then go back and click the link again.
For me, Google meet works much better.