>>12749417They're on the World server, which is equally accessible to all branches. Most of the other branches also have their own contained server (or 2-3, in the case of the JP branch), but the international branches tend to play and collab on the World server a lot more frequently nowadays.
Also Minecraft often gets used quite frequently as a "platform" for group games where the draw is the game itself, rather than the construction and prep for the event (vs. for example big Hololive projects like the server link or sports festivals); these games aren't necessarily centralized on a single server either (the Werewolf/Mafia games, those survival gauntlet events, the KR Squid Game knockoff, etc.)
