Well you have your “home” lemmy instance which you are logged in to. Everything you see goes through your home instance. But many things you will see originate on a completely different “remote” instance. Your home instamce nees to be federated and synced in order to the everything that happens in the remote/origin instance

I love that you link Obtanium. This is the first time I saw an app dev actually linking to Obtanium. Getting your FOSS app update directly from the git repos without the google bs around it just seems logical.