So you also could not take notes on paper?

For people with autofocus, not hyperfocusing and slamming desk is harder than trying to focus.

It depends on what you mean by multitasking and the expectations. People multitask from birth.

Singletasking is a myth. I can't keep attention without any background task. If not computer, I will doodle on paper or fidget

Doodling at least appears to help with memory recall.

Anecdotally I've always found that when I see a doodle made during a meeting or lecture I get a much more vivid recollection of the actual content.

https://www.sciencedaily.com/releases/2009/02/090226210039.h....