It seems weirldly like the Minecraft devs tried Minetest and kinda randomly picked a couple of features to copy. The article describes how the new worldgen’s verticality and caves are reminiscent of Minetest, but inventory clutter is also very much like the default Minetest Game (which also has pretty useless copper, albeit as one of too many tiers of tool material, going into the same recipes as stone, iron, gold, diamond, etc.).

I much prefer the Minetest game NodeCore, which is playable with 8 inventory slots (the small HUD bar is all you get, because the game shuns all modal UI except a hints system for figuring out crafting and other gameplay mechanics without using a guide to see whole recipes, which are considered spoilers) and makes the fancy terrain more navigable by letting you scale cliffs and even climb overhangs without placing or mining anything.