Pika use Servers or Worlds for Bedwars?

[ItzMrTurbx]

Hello, ItzMrTurbx Here.
I had 3 am thoughts and i was wondering if pika's using servers or worlds to host bedwars games
And i mean most of servers use a plugin called "Multiverse" so they can teleport players through different worlds in minecraft and play
Or they use Bungeecore Software so they can host and connect multiple servers and by that they teleport players to bedwars hosting game
What does Pika use of both?

 

[Otherside]

They use Multiverse plugin ig.

 

[Silver Wing]

I have no idea tbh
Multiverse is generally used on a small server with no dev knowledge, so probably pika uses its own custom plugin