Not the OP, but I have similar habits. My workplace expects me to be productive, and taking 40-90 minutes off in the afternoon once in a while to walk and think

Not the OP, but I have similar habits. My workplace expects me to be productive, and taking 40-90 minutes off in the afternoon once in a while to walk and think helps me be more productive than I otherwise would be, as well as less stressed. My workplace may be an outlier here (they also provide nap pods and game rooms, so obviously condone taking breaks) but I've never had anybody confront me about it -- not sure that my coworkers notice, and if they have I doubt they care.