Viewing a Shared Screen

When viewing a Shared Screen, there used to be an option under the View Menu to Hide Video Panel. This option has now disappeared, which means that the video thumbnails of Participants is always present obscuring part of the screen. It can be minimised but still leaves a grey rectangle on screen.

I have tried to contact Support but they are not grasping the problem.

I AM NOT screen sharing, I AM VIEWING someone else's Shared Screen.

I and every other member of my Group need to be able to completely hide the Video Panel when viewing a shared screen.
Why has this option been removed & can it please be reinstated?

Thanks