Nostr client integrations is really the only thing that comes to mind.
A thing which doesn't make those services any more decentralized than Google Drive. These services probably shouldn't have "Nostr" in the name at all, but the fact that many people on Nostr think that they are decentralized, or in any way whatsoever censorship resistant, shows that much of the Nostr community doesn't actually understand (or care about) either decentralization or censorship resistance.