Origin SMP is a survival multiplayer server that just started a new season and it runs on 1.21 for Java and Bedrock.
The whole vibe is story driven and competitive. PvP has a tier system where getting kills moves you up and dying drops you down so fights actually matter.
There is proximity voice chat so people can talk in game and make deals or start beef right on the spot.
There are no land claims so the world is run by trust and politics instead of protection plugins. The world is also finite at 2500 by 2500 blocks so players run into each other a lot.
It is semi anarchy so a lot is allowed but random griefing with no story or purpose can get rolled back to protect the long term SMP stuff.
