The Zoom Manager is currently the only way to get real time info on guest resolution and framerate, which can be useful for troubleshooting and ensuring the best production quality possible.

I've tried every single Stream Deck plugin that advertises the ability to focus windows, and they all work sporadically at best on the Zoom Manager window, especially when my Fullscreen is on, which it often is during a production.

The CallManagerShowHide shortcut for vMix Calls not only exists, but works while Fullscreen is on, allowing the window to be brought up & dismissed with the literal push of a button.

Whatever purpose that was deemed to serve applies equally well to the Zoom Manager, which not only serves the exact same functions as the Call Manager, but includes additional functions, such as the ability to add guests to inputs.