UI differences are a big factor in the success/failure of decentralised federation of diverse platforms and content
And this seems a good example: bridged #mastodon posts onto #BlueSky which has a lower character limit than Mastodon.
So, just like #lemmy posts on mastodon, you don’t get the full content of the post (which ends with an abrupt ellipsis here) and have to take a link to the original platform.
However powerful the underlying protocols, this isn’t far from screenshots.
Eh. AP isn’t magic. Platforms can be pretty incompatible because of their differing use or implementation of AP. I feel like at some point there’s a blurry line between a bridge being something different and just an extension of 2 protocols.
Definitely, AP is not magic. But if even within one protocol round-tripping and full-fidelity is impossible or very difficult, that makes it only harder and less likely through a bridge.