in reply to Sunshine

@Sunshine Not sure if it's possible, at least not without an app. That's how the Fediverse works - you get access to every connected network, be it Mastodon, PeerTube, Lemmy, Pixelfed (yes, I saw those too) etc.

In fact, you might have stumbled across posts from other networks on Mastodon too - you only didn't notice because Mastodon and other networks do not display where these actually come from.