Do I have to rank mine in Minecraft at server grieferGames (do not come from the lobby)?

I just started playing Minecraft and like to watch Abgen on YT. So I went to Minecraft and server griefergames and ended up in the lobby. Weis someone like me on the server come to me, for example, to get a piece of land and get out of this lobby? Do you have to buy a rank for it?

You right click on the compass. Then opens a menu with items.

Since you choose "City Build" or something like that, or just the sub-server you want. Simply left-click on the item that stands on Citybuild.

So no, you do not need a rank.