The lobbies on the Bedrock server, aside from the parkour, are really devoid of anything to do. On the Java server, however, there are several games you can play while waiting in the lobby. There is timed parkour, the vortex jump, Lobby Fishing, and Relic Hunting, to name a few. I think the latter two, or similar collect-a-thon minigames, would make great additions to the Bedrock server since practically no other server has anything like these aside from seasonal events like the pumpkin hunt.