I really like this old minecraft pocket edition terrain generation

Experimental Features Toggle in Minecraft Bedrock Edition – Minecraft Feedback

Minecraft Pocket Edition Alpha

Pocket Edition v0.1.0 alpha – Minecraft Wiki

Bedrock Edition 1.20.30 – Minecraft Wiki

Can new updates be seen in old Minecraft worlds? E.g., placing new blocks, getting new biomes in unexplored locations. - Quora

Am I the only one that misses the old world generation? : r/Minecraft

Am I the only one that misses the old world generation? : r/Minecraft

old minecraft PE world generation : r/nostalgia

Minecraft: OLD WORLD GEN MOD! (w/ New Biomes!)

Minecraft Pocket Edition for iOS uses the old world generator: Gravel Beaches are BACK!! : r/Minecraft

The World Generation of Minecraft - Alan Zucconi