You can record your face and screen together with the Sendspark Chrome Extension.
To get started...
Install the Sendspark Chrome Extension here.
Make sure the Chrome Extension is pinned on your Google Browser
Launch Sendspark by clicking the Sendspark icon on your Chrome nav bar

Select Both as your recording type (note, you can click on the ... to change the recording type)
Click Record to start recording!

Please Note: Because this is a Chrome Extension, there are some limitations. One is that you will not be able to drag your face bubble off of your Chrome window (so you cannot record yourself over a powerpoint presentation).
To request we build a desktop application so you can record over any part of your screen, please upvote this feature card on our Public Roadmap.