You can self host the enterprise tier "User and meeting metadata are managed in the public cloud while the meeting traffic including video, audio and data-sharing goes through the Meeting Connector in your company network." https://explore.zoom.us/docs/en-us/plan/enterprise.html

good luck finding the telemetry in the decompiled meeting connector server

Not that hard to packet sniff or add a firewall

Zoom sends encrypted traffic to their servers, for "control" purposes. How are you sure it's not leaking your company secrets.

There's no way that a legal team will be happy with an attempted technical block to what is a legal problem.

Simply cancel the zoom contract. It's not like there aren't alternatives.

If this applies to corporate accounts then it's time to short Zoom like there's no tomorrow.

Regardless, you should complain to your org about this. I’m sure it’s where all their (Zoom’s) revenue comes from. If enough of us do it, they will listen.