Opening an older version (1.17 or older) world in 1.18 and then running the /locatebiome command will result in an incorrect location for the requested biome. As in the pictures attached, attempting to /locatebiome while in chunks generated in an older version than 1.18 will result in an incorrect location being provided.

Recreating the bug:
1. Load a world in an older version of Minecraft such as 1.16 or 1.17.
2. Save, close and then re-open it in Minecraft 1.18.
3. Attempt to locate biome, in a previously generated chunk (one not generated in 1.18), using /locatebiome minecraft:meadow. The command will complete but upon teleporting to the location, the biome will be incorrect and does not correspond to the requested biome.