yeehawk well, a websocket is a websocket. It doesn't really matter whether ntfy is keeping up a constant connection or Molly. The real benefit of UnifiedPush is either
a) providing push notifications to multiple apps, thus "unifying" their websockets into one or
b) in the case of Molly, UnifiedPush is the only way (besides FCM) to get notified with an at-rest encrypted db.
If your goal is to save battery and Molly is the only app utilizing UnifiedPush, there's not gonna be any difference compared to plain old websocket.