I found a server called MinecraftOffline that runs on Minecraft 1.21.11 and it is built around lifesteal gameplay.
The world is meant to be truly permanent and they say there will never be any resets so your progress sticks around.
It is hosted in Finland so it is tuned for Europe and it runs on solid hardware with an Intel Core i7-8700 64GB DDR4 RAM enterprise HDD storage and a 1 Gbit network.
They also use custom plugins to make the server feel different from normal survival.
