@Gargron There's a certain client (who I'm not putting on blast) that doesn't display posts from non-Mastodon servers.
I don't know how they manage this -- but they do.
Interestingly, the best Pleroma/Akkoma client for iOS is the official Mastodon app ๐
@atomicpoet A client has no way of knowing what software generated a post on the other end. All posts are uniform in the Mastodon API, federation is handled by the server entirely. There is no way for a client to not display posts from non-Mastodon servers.