I'm not too close with PS but the last time I talked to their content director they mentioned wanting to focus on shorter courses and much preferred a bunch of short courses that are loosely coupled but still related vs. 1 longer course.

Maybe that's something they are pushing for moving forward.

For something like this Flask course, I've had people tell me they cranked through it in 1 day at 1.5x speed, and others have taken it multiple times over the course of a few months and still reference it a year later.

I think it really depends on your level of experience. I'm a big fan of "doing" and while the course does have a lot of watching, there are self guided homework assignments to make modifications to the code base (they are presented as real life feature requests).

If you did all of the assignments, there's probably 40 hours worth of content to go through, but those assignments are really your chance to get your hands dirty and start practicing what you learn.

A lot of people also build up their own app side by side while watching, which is a great way to follow along if you already have an idea. It takes longer, but IMO the goal here is to become a solid developer, not rush through it and do the minimum.