I'm hoping that we will see some savings as I'm now able to (and have) set temperature schedules in all of our heating zones. As four of our five zones are now connected to the Google Home app, I now have access to data about how often each zone is active, and how that activity compares to previous days, weeks, months, and years (after we use them long enough). In general, more data can help me figure out where the trouble areas are--one of which is certainly our master bedroom.
For now, the larger heating problems seem to have been solved even if that corner bedroom is still running too warm. I think that I've done what I can for now. My plan is to wait and watch without making any more large changes unless necessary.