If you are doing presentations, and you want to bring attention to certain areas of your screen, then you should look at screen pointer.
![](https://www.anintegratedworld.com/wp-content/uploads/2021/09/image-1.png)
The free version provides a spotlight which is great. The paid version provides other features such as laser point but in Google slides, there is a laser pointer built in.
![](https://www.anintegratedworld.com/wp-content/uploads/2021/09/image-2.png)