See microsoft/azuredatastudio#2140
like SSMS, it is incredibly easy to accidentally cause a tooltip to appear by moving the mouse close to it, which is distracting for the audience. If there is some way you can address item 1, and it involves a mode in which tooltips only appear if the operator is clicked on, that would make for a much cleaner experience for demonstrating the tool. (Everyday users probably like the hover behavior as it is standard, so I understand that you might not want to change the default experience.)
See microsoft/azuredatastudio#2140