I find myself hyper-focusing on work a lot and forget to take breaks which slowly builds into all sort of issues. Adding a basic timer that can show a pop up or a reminder to take a break every X minutes would be helpful.

To take it even further the timer can be set per category and go off reminding you to be productive if X amount of time spent on Distracting category during scheduled times (if the scheduling suggestion ever gets implemented)

Maybe even a Pomodoro feature.