I loved and miss the mega app experience from Google Plus. I love that I could organize follows so certain people could see certain posts. How easy it was to start a chat or chat group with people on the side of the window with their chat and then from there go into a Google Hangout to voice chat or video chat.
Also loved the grid layout to quickly view posts. You could quickly respond to what you cared about and ignore what you didn't.
Probably not anytime soon, but I wonder if I'll see anything like that with NOSTR. Maybe something in the future where you can plug in some else's services or applications to try something similar.