With Rooms, you can share your screen through its Screensharing function. To start screen, click on the monitor icon on the bottom of the screen. A new window will open up and your will need to choose what screen you want to share.

You can either choose your whole screen by clicking on “Your Entire Screen” or a specific application after choosing “Application window”.

Afer you confirm your choice is correct, click on “Share” and the procedure will initiate.

Note that you can also share specific Chrome Tabs but depending on your browser you might need to download an extension in order to get the procedure started.