I found a vanilla anarchy server that has been running for almost a year. It feels like normal survival but with the wild player driven vibe where anything can happen.
It supports both Java and Bedrock so a lot of people can get in including console players. Java works from 1.13 up to 1.21.x and they recommend 1.21.11.
The big thing is it is no hacks allowed. That means no hacked clients no cheats and no xray even with resource packs. They also do not allow exploiting server vulnerabilities crashing the server trying to lag it out or using macros and automation tools. If you spam chat too much you can get auto kicked.
