hiding the speaker video during screen sharing

Welcome to the Zoom Community, @tkanaana.  Sorry for the delay in getting a response to you.

I'm assuming you want no camera video shown during a portion of screen sharing... not just hiding the speaker, but everyone.  This is easily done by turning off the camera for all panelists, hosts, and co-hosts, and then setting the Attendee View to Standard.  This will expand the shared screen to full window view with no panelist camera box present.