@dansup difficult. Somehow I fear to many features in one app as this is the road to enshittification. Otherwise watching loops should work in Pixelfed apps (or Mastodon) otherwise. But different apps could focus in terms of ways of creation and could also focus in the way how the Fediverse in general is displayed.

Mastodon: text first.
Pixelfed: image/video first
Loops: video first (9/16)

But they all base on ActivityPub and are able to display it in a focused way.