Same! I don't do anything as elaborate as the article, but I use a combination of OBS, PowerPoint, GIMP, IDEs, and a cheap Wacom tablet to demonstrate all the concepts for my classes.
The "Khan Academy"-style drawing I think really helps keep learning online casual and conversational in a way just presenting slides doesn't.
The "Khan Academy"-style drawing I think really helps keep learning online casual and conversational in a way just presenting slides doesn't.