Once you install Zoom into all your workplace conference rooms (aka Zoom rooms), you're pretty much locked in. It's also pretty great from a work angle. We have remote workers who can Zoom into any meeting and it's seamless.
So, sure, we’re not about to rip out our Zoom Rooms, but that’s because of the “Zoom” part not the “Room” part of that phrase.
https://support.zoom.us/hc/en-us/categories/200110033-H-323-...
If you have general-purpose hardware (e.g. a raspberry pi hooked up to a TV camera and microphone) then it seems you shouldn't be locked in...