It sounds like you could have a little "buffer time" where you "do nothing" to prevent burnout when you need that free time for something that pops up and to take adequate breaks to pace yourself cognitively speaking
Otherwise I don't see why you couldn't do lower value tasks with flexibility to abandon them if something higher value comes up
doing LOTS of nothing can also be a huge power move. i was in software development, technical writing contracting in Silicon Valley back in the 80s. i stepped away to do something completely different for 40 years. curiosity in AI brought me back. the background acquired from my exploration of an apparently unrelated field enabled me to develop some very advanced software concepts relevant to the problems with AI, and implement them in working code.