Modularity. Perhaps an app like Spring by @brugeman could allow you select one of each type of app you want to use primarily out of the plethora of Nostr apps that exist. For one's primary notes client someone might choose Amethyst or Damus or Coracle or Primal, etc. For DMs, you could specify that client. For messenging OxChat or whatever. For streaming zap.stream or some alternative. For communities or groups Chorus or Flotilla or Chachi. For longform notes Habla or Highlighter, etc. For your signer Amber or Nsec App or nos2x, etc. So you would open up "Spring" and it would be your portal or platform to all of these various functions drawing on a variety of different Nostr apps that are all interoperable, and that everyone can choose as they please. The best apps would likely get the most use. You open one app like "Spring" and it's your gateway to all the possibilities of the Nostrverse.