I found Dopecraft 420 and it is a newer modded survival server that is trying to get more players. People have already started some progress but it sounds like you can still jump in and do your own thing.
The rules are supposed to be few and easy. The modpack is kind of heavy and it leans on mods like Warium Valkyrien Skies Create Mekanism and Biomes O Plenty plus a lot more from the modlist.
Creative building is optional. The version listed is Forge 1.20.1 and they mention a setup where Fabric API shows up because of a sync mod and another mod that lets it work on Forge.
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