The arbitrary 8.5-9 hour workday drives me nuts, because a lot of the time, I really only have 3 or 4 hours worth of work to do. I generally work quickly and I value my time. Can I make a decent living doing something that gives me this kind of flexibility?
Very possible in tech. You want to look for somewhere product-focused (no agencies), large, and well-established that will give you a WFH position. I do design work and have this type of schedule, though I am always very responsive and available between 9-5 if someone needs something from me so I’m not holding anyone up and making anyone annoyed. I keep up with my deliverables comfortably and have flexibility to have both really productive and really meh days without it being problematic.
Just don’t do IT, unless you can find a job with flex time.