Apple safari is another nightmare

It's insane to me that virtual effects and backgrounds are a feature integrated into video conferencing to begin with. Why couple these things instead of having them live as a separate application that exposes a virtual camera to any software that needs it. This way you're choosing video conferencing software based on how good it is at being video conferencing, and camera effects software based on how good it is at doing camera effects (if you even want them).

Do you have a Mac? Then install the beta of Sonoma and turn on portrait mode. It's background blur between the camera and your video app, just as requested. It'll probably pull less CPU than Zoom doing it, too.

Safari is for downloading other browsers.

Which needs to be Chrome for some features of Google Meet.