No, far from me saying that the clients (apps?) need to look the same. What I am saying is that the differentiation should be happening at the client, not the server.

It's the thing with Communick. I wish I didn't have to offer separate instances for each of the services (Mastodon, Lemmy, Funkwhale) but that every member could get one account which then could use as their main fediverse actor, regardless of "frontend" suited them best. The shell should adapt to the user, instead of the user being forced to adapt to the application.