I found a Minecraft server called MinecraftOffline and it is an anarchy survival world on version 1.21.11.
The world is permanent and they say it will not reset so you can build up for the long run. It runs custom written plugins to make gameplay feel different and more unique.
It is based in Finland so it should feel smooth for European players who want low latency. The server also mentions reasonable hardware and a 1 Gbit network so it seems built to stay stable.
