Using a combination of Terralith and Oh The Biomes You'll Go (optimized for the patch), the landscapes are breathtaking and uniquely vertical.
If you're looking to use or learn more about Theos and its patches, here are a few general steps and considerations: 28 theos pack but better patched
Eliminated the "ID conflict" errors that plagued earlier iterations. Using a combination of Terralith and Oh The
However, the original release was a mess: 28 theos pack but better patched
The "patched" designation often refers to fixes for UI glitches and better compatibility with modern Minecraft versions, offering a smoother framerate than the base pack.