The Philips Hue app got a nice quality-of-life change.
Android Police spotted that as of the April 30th Hue Android app update, you can change what all the lights in a zone or room do after they regain power by tapping the three dots menu for that room or zone, then Edit Room > select all > Edit.
You can also just tap “Move to” and move them somewhere else. The iOS app works the same way.