Hey there @snarkst0mper1! Welcome to the community! Yes it’s entirely possible, but by no means is it an easy feat. Unreal has some incredible useful tools like being able to rebase the world origin and the voxel plugin, which are where I’d usually point in the direction for this specifically. As many have said this is a goal for tons of developers. One example is the recently awarded Megagrant recipient Moonmen Games “Worlds of the future” that use the voxel plugin and world origin rebasing to great effect. How exactly they pulled it off is a mystery beyond the tools however.
Disclaimer this is external link to Youtube and everything past this point is not affiliated with Epic Games. This is not official Unreal Engine content.