It sounds like you're just not getting as much value from it as you used to. Nothing wrong with that. I naturally mix it up because I get bored doing one thing for too long. I have a standing desk and I work from home up to 12 hours per day, I need something running in the background or I'll go crazy. So I switch between Netflix, music (yeah, I dance while standing at my desk), audiobooks, podcast etc). Good luck with the experiment!.
When I first moved into my house and was renovating it while living there, I didn't have Internet or any form of entertainment, not even a smart phone, for one year. Let's just say I got to know NPR programming very well. I even pulled out the old CD collection from high school and college.