I could also just drink Huel and save an hour a day not eating but I don't because I like eating.
I don't think it's reasonable to expect people to be doing productive things 24x7. You're going to want a break at some point.
I learned a lot from watching YouTube. I was able to complete many home improvement projects based on DIY videos. And learned about many different subjects: history, science, engineering. I probably learned more from YouTube than from books. I do have YouTube Premium subscription so I don't need to watch ads — makes a big difference.
“The time you enjoy wasting, is not wasted time”
- John Lennon
I have learned something valuable from reading something on Reddit or watching a how to video or explanation video on youtube.