I first noticed this weird bug while looking at a roofed forest biome but then quickly realised it affects every biome that generates trees close together. They all generate in a chunk grid pattern instead of smoothly transitioning between biome.

How to reproduce: Go to any tree generating biome like a forest and go up into the sky and look down below

What should happen: Trees are spread out normally and transition between biomes smoothly

What happens: Trees show obvious chunk borders and look kinda odd