is there a way to see the front page or list of communities of an instance without getting out of the instance you're currently in ? - LemmyWorld

For now, I can only visit a community from another server by searching or opening a post from that server, if I open it in the post’s original server or if I open their site, I’ll be in another lemmy instance and I’ll have no account there, so I can’t really interact. So, I’m curious if is there a way for me to browse lemmy.ml [http://lemmy.ml] for example (or other servers) and see all the trending posts there or browse their communities without me leaving lemmy.world Basically, looking for a way to turn my current instance to be like a “window” that I can use to look into another instances.