Videos and podcasts are something I don't learn much from. Due to the cognitive dysfunction from Lyme disease, I don't retain things very well. I also have a hard time with concentration, takes a lot of energy, as much as physical activity.
Reading helps retention, as does writing down what I'm trying to learn. So I don't watch much DTube stuff for that reason, unless it's pure entertainment. Also because it's an energy drain and when I'm working on something, I need all the energy I can find.