End pretty much impossible to complete due to new generation

I was messing around in buffet and I decided to go to the end.

I may be able to describe what is happening here.

I went into Lush Caves floating islands, and it generated these massive islands all the way up to like 255 to -60 or something like that. Since the end seems to use that generation type, it must have used the new generation algorithm to create these islands, therefore breaking the structure of the island.