Provider-Exclusive: “There is only the app of my provider.”
Provider-Centric: “There exist other apps, but the one I’m using is the main one.”
Service-Centric: “There is no main one and I’m trying to use the one that fits my ideal the best.”
Protocol/Ecosystem-Centric: “There exist other protocols/ecosystems, but mine is the main one.”
Fediverse-Principle: “There is no main one and I’m trying to use the one that fits my idea of an open ecosystem the best.”
Current state of different web2 apps:
I also am no graphic designer, but: maybe just remove those central lines if you scale it down so much that they’re a problem. It’ll still be recognizable and true to the spirit of the thing.