Any tips on activating the "Pre-register Guests" option for the panel to appear? Since it appears to be a "new-ish" feature based on the Support info, wondering how to access.

https://support.zoom.com/hc/en/article?id=zm_kb&sysparm_article=KB0058152

Subscribed to a package that would provide, but it's not showing up 

I'm using Linux Mint 21.2 and never had a problem with screen sharing, (sharing a video).  I downloaded and installed Zoom Version: 5.16.1 (8561) 64 bit on Monday 9/25/23. Zoom works until I attempt to start Screen Sharing. The video plays fine until the Screen Sharing process tries to start and then the video player crashes and Zoom sometimes crashes along with it. I tried using VLC and Haruna and both crash immediately.  Tried uninstalling and re-Installing Zoom but to no avail. Can I install a previous version of Zoom for now? Need help as I sometime run a Zoom Meeting.

OS: Linux, Ubuntu 23.04

Zoom version: 5.16.2.8828

For accessibility reasons due to a visual impairment, I run at a low screen resolution of something like 1024x768.

When other meeting participants running at higher screen resolution share their screen, the "Fit to screen" view option is of course blurry and too small to read.

So I use: View Options -> Zoom Ratio -> 100%(Original Size)

This zooms in to a readable screen size, and should allow me to use my mouse to drag and move the zoomed in area.

Sometimes this works when the first participant starts sharing.

When the first participant stops sharing, and another user starts sharing, I can no longer drag / move the zoomed in area.
Instead it will still zoom in 100%(Original Size) but I can no longer drag with the mouse to move the viewport zoomed in area. Instead it is stuck zoomed into the top left area of the shared screen. At that point it no longer allows using the mouse to drag the zoomed in view to other areas of the screen shared by the other meeting participant.

This seems like a bug.

I have tried various options in Settings and screen sharing.
I have tried switching from full screen, switching to side-by-side mode, etc. Nothing fixes this.

I was hosting a zoom help desk for family history with screen sharing enabled for all participants. Someone joined the zoom help desk but seemed to not have a share screen button. He read me all the buttons across the bottom of the window, "chat, reactions," etc., as well as the "more" button topics. No green share screen button. 

He was using a new Macbook. He was a first time Zoom user. 

Is this even possible?

How can we fix this?

Thank you.