Possibly the First '64-bit' Far Lands Exploration Above 1.20

(Just uploading in advance) Most of the Far Lands were captured in older versions like 1.15 or below (it seems there's too much to fix in later versions), or they were forcibly brought to coordinates 12,550,000, so I decided to build it myself. I've set the version to 1.21.4, and the barrier doesn't appear (there might be some code to prevent overflows). After finishing this, I'll probably move to version 26.3. Honestly, the new version debug Far Lands are a bit iffy right now. Currently, the issues are that I can't teleport by z-coordinate, loading is incredibly slow, all mobs spawn at coordinate 0, biomes are different... and so on. However, the loaded terrain looks the same. The second picture is of a very distant area, but I couldn't see it properly. Loading is much slower. If I turn the screen sideways, the loaded area disappears again.. It's strange, but I see a lot of shapes below. Lol, it's maxing out my CPU at 100%. It seems I need to fix the chunk loading, as it's slow starting from coordinate 0. The End was just islands. I'm currently bypassing everything with GPT, and it seems to be working quite well, although limitations are a hurdle.