@Mellifluent You might want to look at help content within Google Meet. When you click to open Google Meet, I notice a "Learn more" link. Looking at it, this seems like a good way to get answers to your questions. There are pre-populated topics you can look at. And, you can use the search box at the top to post a specific question. For example, I entered "share screen" in that box and found several help articles that could be useful. And, perhaps other Community members use Google Meet and can give you some tips.