When you share browser tab, your mouse cursor is shown as a green disc to the viewer.
When you share full screen or a program window, your mouse cursor is transmitted as it appears on your screen. If you wish to show your mouse cursor more prominently when sharing full screen or a program window than just showing the cursor itself, we have found free software that you can download for this purpose.
If you are on a Mac, the free program Mouse Locator works well. Install it, then press control+Space to activate it at any time, and while it's active your viewer will see where you're pointing. Download it here.
On Windows, the free program Cursor Attention achieves a similar purpose. The download page is here.
If you have pointers to other programs that help highlight your mouse cursor, please share them in the comments below!