Gregory's Server
Maybe I am in the minority, but I really don't think that is an issue for the server software. This idea of "one account for pixelfed to post photos, another on mastodon for text posts, another on write.as for longer blog posts, funkwhale to follow music channels" just leads to excessive fragmentation and balkanization.
I'd rather have only one account with a server that can create all kinds of ActivityPub objects and let the *clients/frontends* make the filtering.