Why are all youtube autism videos so .. incredibly long

I have ADHD also and I've noticed that Youtube videos made by autistics about autism are very long, like typically at least 20 minutes long.

This is excruciating to get through if there's no good timeline cliffs.

Is it something autistic or is it just some Youtube algorithm thing to get engagement?

I notice with myself I have a tendency to overexplain, it was much worse in the past, like if I wanted to explain a task to some employee, I would write very long and very detailed descriptions of the task.