The same problem I have when it comes to Mastodon/Misskey/Firefish - I feel like everything is so fragmented, like I have to jump from one place to another. Thankfully, this applies significantly less in the "threadiverse" (Outdated name, we definitely need a new one) because there aren't 6 different platforms and tens of different forks, and Lemmy and Kbin are pretty much 100% compatible with one another, unlike those moments where you can't see Mastodon re-toots on Firefish a lot of the time or sometimes accounts' posts appear much later in a different instance. We don't need to worry about that here.
There are cases where reposts on some Mastodon instances and most of Misskey's reposts aren't seen on Firefish, but are seen on Misskey, because for some reason Misskey seems to have better protocol interoperability, so you get a vastly different experience even when following the same people.