Picture-in-Picture Feature Not Appearing on MacBook

I'm using Zoom on my MacBook, and I previously used it on Windows. On Windows, I was able to use a feature similar to Picture-in-Picture (PiP), where a floating screen would appear during a meeting, allowing me to see the active speaker or shared screen even when I wasn’t in the main Zoom app.

However, since switching to my MacBook, this feature is not working. The floating screen only appears when I am the one sharing my screen, but not when others are sharing or speaking.

I’ve spent several days looking through the settings and trying to find a way to enable this feature, but haven’t had any luck. Does anyone know how to get this PiP-like feature working on a MacBook?