You could’ve just rephrased this to “don’t work anywhere during the pandemic”. Seriously, most people have very little choice in what they can install.

WebEx and Skype also have web browser versions. I don't know about the other ones. But you can generally use these apps without having to run an executable or install anything.

I’ve worked remotely for years. Refuse to install these apps on my computer. If someone requires a meeting with an app-only interface, I dial in. Otherwise, I run Zoom on an iPad.

I don't really care that much about the privacy of what I install on my work computer. That's their business, as long as I can turn the computer off when my work day is over. It's more of a concern for my own machine.

Sandbox it, or get a hardware mute for your device if you don't have a choice.

I’ve worked remotely for years. Slack and Zoom work fine in a browser.

My practice is that if I'm paid, I'll use company software. In the real world (my own time)... not a chance