For me the problem was that they were called out about the backdoor they installed on Macs, and then totally refused to do anything about it, and it took Apple

For me the problem was that they were called out about the backdoor they installed on Macs, and then totally refused to do anything about it, and it took Apple to actually incorporate a system update to remove Zoom's malware. I understand 'mistakes' happen (though this was way too elaborate to be a mistake). But to just shrug it off and refuse to do anything when it's discovered is just total ignorance of security.