Every Lemmy instance chooses its own name for the meta community. Some don’t even have one. Some choose quite bizarre names.
That’s shit. If you walk into an office building, the receptionist is almost always close to the main entrance. When you enter a restaurant, the host(ess) is either close to the front door or there is a clear path to the host(ess). Yet Lemmy is terribly organised in this way. The power of defaults can go a long way here. A meta community should be created by default with a default name. And by default it should be listed at the top on the communities list.
Best way to cope with the madness is sort communities chronologically with oldest first. But it’s not solid. Sometimes the meta community is created late in the game.