I found a server called MCVerse that is made for long term survival and big projects. The main idea is no reset and no grief so you can take long breaks and not worry about your stuff.

It is classic survival grind with no custom items enchants or skills. You can trade with player markets to skip some grinding or you can play fully solo style like a single player world. You can rank up for free just by playing and the perks are free.

The community tries to keep chat clean and swearing is not really welcome. Public chat is meant for Minecraft topics and gaming.

There are a few different places to play. The permanent survival world is on 1.21.10 and it has things like claims a map markets clans and fishing contests. There is also a hardcore vanilla option on 1.21.10 with no grief. There is a vanilla mode on 1.21.11 with smaller claims and worlds that last about 6 to 12 months. If you just want to test builds there is creative plots on 1.21.8 and it supports litematica pasting.

Gameplay stays almost purely vanilla but there are some teleports and optional quality of life stuff. Builders also get decoration tools like armor stands mini blocks and heads. The world is big and permanent and newer generation like Pale Gardens has been added into the main world naturally. The server has been online for two years and the players are from lots of ages.