"Google added two fantastic new features to Google Slides. First, Google Slides now has a Q&A feature that lets your audience submit questions to you. Second, Google Slides now has a built-in laser pointer that you can use to call attention to parts of your slides. I've already received some questions about how to use these new features so I made the following short video."
t/h R. Byrne
This makes Google slides very versatile for online presentations. Check out the how-to video.