Buildbox doesn't use Java or Kotlin. Buildbox is a node based Game Engine. Inside the nodes, it is written in JavaScript.
As a norwegian I play the "Eliteserien Fantasy". Which is the same concept, rules and design as FPL, only with diffrent chips and off course the norwegian top division. Its much more unpredicteable, except that you have one team (Rosenborg) that are huge favorites. Nicklas Bendtner (13m) is the top striker thats on pretty much everyones team. Two GW in, and he hasn't scored 192.168.100.1 192.168.1.1 yet.