[MC-279488] Leaf litter generates very sparsely in Dark Forests

Leaf litter is generated very sparsely in Dark Forests, compared to 25w02a.

Create a world in 25w03a and note the amount of leaf litter generated in the Dark Forest.
Use the same seed and coordinates to see the amount of leaf litter generated in 25w02a.

Leaf litter is generated extremely sparsely in Dark Forests compared to 25w02a.

Leaf litter would generate slightly more commonly.

Linked issues

Can confirm.

Can also confirm also there is none in Forest

I would consider this to duplicate MC-279481 now due to the edit by @unknown.

I'll actually keep them separate just in case.

Um guys... that's this report. :/