Shutup Experimental Settings! removes the annoying "Experimental Features" warning that appears every time you create or load a world with custom dimensions or world settings. It is a Forge port of the Fabric mod "Disable Custom Worlds Advice".
Handy for modpacks with custom world generation, or if you are building a mod with its own worldgen. Forge, Minecraft 1.16.2 - 1.19.2.
Pair it with a custom-worldgen modpack on Minecraft hosting, added in a single click from the panel.