I think a lot of confusion about the fediverse stems from the fact that most services default to your local instance as front page. I know you can change it in the settings here, but the setting is also defaulted to local, so maybe that one should be set to all, too?
You don’t need a new account, just that’s what lemmy does by default. You can change it in the settings to show all communities. However, if it were to default it to all, it might be less confusing to the masses.
I selected “all” but it’s still showing local when I go to instance’s homepage.
Edit: it works for “subscribed”, but both “local” and “all” show local.