I think you have a typo in the image link you posted on reddit explaining the fediverse. The one you posted in your comment above works, but not the reddit comment. I think you have an extra \ after the Hoc5dXU on the reddit link. Awesome explanation image, though. Did you make it?
As a teacher, I can confirm this. I always move the cursor out of the way, though. I don’t get why other teachers don’t do the same and how so many of them are so tech illiterate. Although I’m more amazed at the tech illiteracy of the students who use their phones 24/7.