I was making a datapack and wanted to know if there were specific methods needed to generate a custom datapack dimension as a Quark Realistic world type. I've been running into a lack of examples of people attempting this and was wanting to know if there were known methods to doing this listed anywhere and if there isn't any, then a way to perform the task. Any advice or pointing of direction would be appreciated!

Sorry, we're not quite the right people to ask on this (modding and datapacking are cousins, but we work more code-side.) Try searching for a datapacking community, maybe on Discord?