I am a teacher who is trying to make instructional videos during the corona lockdown. I want use a presentation for the instruction while recording the screen.

I use latex beamer for my presentations and I would like to use my mouse to make certain notes on the slides during the presentation as a replacement of my whiteboard in the classroom.

Microsoft PowerPoint has a built-in pen feature that allows the use of the mouse as a pen during a presentation. However, I refuse to use Powerpoint since the typesetting for equations and formulas is terrible.

Is there a way to draw on beamer/PDF slides during a presentation?

I am a Windows 10 and Linux Mint user.