You can select the default world type when creating a new world with Default World Type Mod (1.19.2, 1.16.5). Ex: If you have Garden of Glass installed, change the value in your client config to “botania_skyblock”. The user doesn’t have to change the type of the new world to it when creating it. This will ensure that you don’t accidentally create the wrong world. It’s also less likely. Modifications are for the client only.