I found a chill Java 1.20.1 Fabric SMP run by a couple friends who want more people to play with.
The whole point is exploring and building together and making a world that feels lived in. It is not sweaty and it is not competitive.
They use a curated mod list that adds new monsters and weapons and armor and mounts and resources and furniture and cosmetics. Setup is supposed to be easy.
They also run proximity voice chat so you can talk while you explore or build or team up for adventures.

