Security bloggers are all about attention - shiny thing. That's why there's a semi-annual story that gets some traction with a headline like "Experts from FooCorp warn that the honeymoon is over, viruses have arrived on MacOS!" Zoom is the new Apple for this shit.
Zoom has lots of issues, but the pile-on is just dumb. Everything has issues. Do you use a phone? Landlines are not encrypted, mobile is encrypted with defective security, and carriers have access to all metadata, all data, and provide CALEA access as a service.
So yeah, there's a risk that your sales call, or 5th grade english class, or other meeting could be compromised by some malicious third party. How does the probability/impact of that stack up against the probability that your salesman or 5th grader's grandmother will be infected and die from exposure?
I've worked and architected systems for people with very high confidentiality requirements. Guess what? They don't use internet-based remote collaboration systems to remotely collaborate. The only common system that comes to mind that you might be able to use in these scenarios is an on-premise version of Webex, assuming it still exists!