The bug

Using /locatebiome can teleport you inside of blocks when locating cave biomes. This is likely a valid issue unlike MC-143512 due to the introduction of set Y coordinates in the results of these commands in 22w12a for cave biomes.

How to reproduce

Seed: -8536124287322511917

Run the following command and teleport to the position it returns:

/locatebiome minecraft:deep_dark

The position it returns is not always consistent, so it might take a few tries before it happens.